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usb: phy: fix return value check of usb_get_phy

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usb_get_phy will return -ENODEV if it's not able to find the phy. Hence
fixed all the callers of usb_get_phy to check for this error condition
instead of relying on a non-zero value as success condition.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Kishon Vijay Abraham I 2012-06-26 17:40:32 +05:30 committed by Felipe Balbi
parent b8a3efa3a3
commit ded017ee6c
25 changed files with 96 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/power/ab8500_charger.c
View File

@ -2689,7 +2689,7 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev)
}
di->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
if (!di->usb_phy) {
if (IS_ERR_OR_NULL(di->usb_phy)) {
dev_err(di->dev, "failed to get usb transceiver\n");
ret = -EINVAL;
goto free_usb;

2
drivers/power/isp1704_charger.c
View File

@ -416,7 +416,7 @@ static int __devinit isp1704_charger_probe(struct platform_device *pdev)
return -ENOMEM;
isp->phy = usb_get_phy(USB_PHY_TYPE_USB2);
if (!isp->phy)
if (IS_ERR_OR_NULL(isp->phy))
goto fail0;
isp->dev = &pdev->dev;

16
drivers/power/pda_power.c
View File

@ -322,11 +322,11 @@ static int pda_power_probe(struct platform_device *pdev)
#ifdef CONFIG_USB_OTG_UTILS
transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
if (transceiver && !pdata->is_usb_online) {
pdata->is_usb_online = otg_is_usb_online;
}
if (transceiver && !pdata->is_ac_online) {
pdata->is_ac_online = otg_is_ac_online;
if (!IS_ERR_OR_NULL(transceiver)) {
if (!pdata->is_usb_online)
pdata->is_usb_online = otg_is_usb_online;
if (!pdata->is_ac_online)
pdata->is_ac_online = otg_is_ac_online;
}
#endif
@ -373,7 +373,7 @@ static int pda_power_probe(struct platform_device *pdev)
}
#ifdef CONFIG_USB_OTG_UTILS
if (transceiver && pdata->use_otg_notifier) {
if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) {
otg_nb.notifier_call = otg_handle_notification;
ret = usb_register_notifier(transceiver, &otg_nb);
if (ret) {
@ -408,7 +408,7 @@ usb_supply_failed:
if (pdata->is_ac_online && ac_irq)
free_irq(ac_irq->start, &pda_psy_ac);
#ifdef CONFIG_USB_OTG_UTILS
if (transceiver)
if (!IS_ERR_OR_NULL(transceiver))
usb_put_phy(transceiver);
#endif
ac_irq_failed:
@ -443,7 +443,7 @@ static int pda_power_remove(struct platform_device *pdev)
if (pdata->is_ac_online)
power_supply_unregister(&pda_psy_ac);
#ifdef CONFIG_USB_OTG_UTILS
if (transceiver)
if (!IS_ERR_OR_NULL(transceiver))
usb_put_phy(transceiver);
#endif
if (ac_draw) {

7
drivers/power/twl4030_charger.c
View File

@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/i2c/twl.h>
@ -480,7 +481,7 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
INIT_WORK(&bci->work, twl4030_bci_usb_work);
bci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
if (bci->transceiver != NULL) {
if (!IS_ERR_OR_NULL(bci->transceiver)) {
bci->usb_nb.notifier_call = twl4030_bci_usb_ncb;
usb_register_notifier(bci->transceiver, &bci->usb_nb);
}
@ -507,7 +508,7 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
return 0;
fail_unmask_interrupts:
if (bci->transceiver != NULL) {
if (!IS_ERR_OR_NULL(bci->transceiver)) {
usb_unregister_notifier(bci->transceiver, &bci->usb_nb);
usb_put_phy(bci->transceiver);
}
@ -538,7 +539,7 @@ static int __exit twl4030_bci_remove(struct platform_device *pdev)
twl_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff,
TWL4030_INTERRUPTS_BCIIMR2A);
if (bci->transceiver != NULL) {
if (!IS_ERR_OR_NULL(bci->transceiver)) {
usb_unregister_notifier(bci->transceiver, &bci->usb_nb);
usb_put_phy(bci->transceiver);
}

9
drivers/usb/chipidea/udc.c
View File

@ -14,6 +14,7 @@
#include <linux/device.h>
#include <linux/dmapool.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/module.h>
@ -1712,7 +1713,7 @@ static int udc_start(struct ci13xxx *udc)
if (retval)
goto unreg_device;
if (udc->transceiver) {
if (!IS_ERR_OR_NULL(udc->transceiver)) {
retval = otg_set_peripheral(udc->transceiver->otg,
&udc->gadget);
if (retval)
@ -1729,7 +1730,7 @@ static int udc_start(struct ci13xxx *udc)
return retval;
remove_trans:
if (udc->transceiver) {
if (!IS_ERR_OR_NULL(udc->transceiver)) {
otg_set_peripheral(udc->transceiver->otg, &udc->gadget);
usb_put_phy(udc->transceiver);
}
@ -1740,7 +1741,7 @@ remove_dbg:
unreg_device:
device_unregister(&udc->gadget.dev);
put_transceiver:
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
usb_put_phy(udc->transceiver);
free_pools:
dma_pool_destroy(udc->td_pool);
@ -1772,7 +1773,7 @@ static void udc_stop(struct ci13xxx *udc)
dma_pool_destroy(udc->td_pool);
dma_pool_destroy(udc->qh_pool);
if (udc->transceiver) {
if (!IS_ERR_OR_NULL(udc->transceiver)) {
otg_set_peripheral(udc->transceiver->otg, NULL);
usb_put_phy(udc->transceiver);
}

15
drivers/usb/gadget/fsl_udc_core.c
View File

@ -24,6 +24,7 @@
#include <linux/ioport.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/list.h>
@ -1229,7 +1230,7 @@ static int fsl_vbus_draw(struct usb_gadget *gadget, unsigned mA)
struct fsl_udc *udc;
udc = container_of(gadget, struct fsl_udc, gadget);
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
return usb_phy_set_power(udc->transceiver, mA);
return -ENOTSUPP;
}
@ -1983,13 +1984,13 @@ static int fsl_start(struct usb_gadget_driver *driver,
goto out;
}
if (udc_controller->transceiver) {
if (!IS_ERR_OR_NULL(udc_controller->transceiver)) {
/* Suspend the controller until OTG enable it */
udc_controller->stopped = 1;
printk(KERN_INFO "Suspend udc for OTG auto detect\n");
/* connect to bus through transceiver */
if (udc_controller->transceiver) {
if (!IS_ERR_OR_NULL(udc_controller->transceiver)) {
retval = otg_set_peripheral(
udc_controller->transceiver->otg,
&udc_controller->gadget);
@ -2030,7 +2031,7 @@ static int fsl_stop(struct usb_gadget_driver *driver)
if (!driver || driver != udc_controller->driver || !driver->unbind)
return -EINVAL;
if (udc_controller->transceiver)
if (!IS_ERR_OR_NULL(udc_controller->transceiver))
otg_set_peripheral(udc_controller->transceiver->otg, NULL);
/* stop DR, disable intr */
@ -2456,7 +2457,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev)
#ifdef CONFIG_USB_OTG
if (pdata->operating_mode == FSL_USB2_DR_OTG) {
udc_controller->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
if (!udc_controller->transceiver) {
if (IS_ERR_OR_NULL(udc_controller->transceiver)) {
ERR("Can't find OTG driver!\n");
ret = -ENODEV;
goto err_kfree;
@ -2540,7 +2541,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev)
goto err_free_irq;
}
if (!udc_controller->transceiver) {
if (IS_ERR_OR_NULL(udc_controller->transceiver)) {
/* initialize usb hw reg except for regs for EP,
* leave usbintr reg untouched */
dr_controller_setup(udc_controller);
@ -2564,7 +2565,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev)
if (ret < 0)
goto err_free_irq;
if (udc_controller->transceiver)
if (!IS_ERR_OR_NULL(udc_controller->transceiver))
udc_controller->gadget.is_otg = 1;
/* setup QH and epctrl for ep0 */

13
drivers/usb/gadget/mv_udc_core.c
View File

@ -19,6 +19,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/timer.h>
#include <linux/list.h>
@ -1381,7 +1382,7 @@ static int mv_udc_start(struct usb_gadget_driver *driver,
return retval;
}
if (udc->transceiver) {
if (!IS_ERR_OR_NULL(udc->transceiver)) {
retval = otg_set_peripheral(udc->transceiver->otg,
&udc->gadget);
if (retval) {
@ -2107,7 +2108,7 @@ static int __devexit mv_udc_remove(struct platform_device *dev)
* then vbus irq will not be requested in udc driver.
*/
if (udc->pdata && udc->pdata->vbus
&& udc->clock_gating && udc->transceiver == NULL)
&& udc->clock_gating && IS_ERR_OR_NULL(udc->transceiver))
free_irq(udc->pdata->vbus->irq, &dev->dev);
/* free memory allocated in probe */
@ -2325,7 +2326,7 @@ static int __devinit mv_udc_probe(struct platform_device *dev)
eps_init(udc);
/* VBUS detect: we can disable/enable clock on demand.*/
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
udc->clock_gating = 1;
else if (pdata->vbus) {
udc->clock_gating = 1;
@ -2369,7 +2370,7 @@ static int __devinit mv_udc_probe(struct platform_device *dev)
err_unregister:
if (udc->pdata && udc->pdata->vbus
&& udc->clock_gating && udc->transceiver == NULL)
&& udc->clock_gating && IS_ERR_OR_NULL(udc->transceiver))
free_irq(pdata->vbus->irq, &dev->dev);
device_unregister(&udc->gadget.dev);
err_free_irq:
@ -2404,7 +2405,7 @@ static int mv_udc_suspend(struct device *_dev)
struct mv_udc *udc = the_controller;
/* if OTG is enabled, the following will be done in OTG driver*/
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
return 0;
if (udc->pdata->vbus && udc->pdata->vbus->poll)
@ -2437,7 +2438,7 @@ static int mv_udc_resume(struct device *_dev)
int retval;
/* if OTG is enabled, the following will be done in OTG driver*/
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
return 0;
if (!udc->clock_gating) {

25
drivers/usb/gadget/omap_udc.c
View File

@ -35,6 +35,7 @@
#include <linux/usb/otg.h>
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/prefetch.h>
#include <asm/byteorder.h>
@ -1211,7 +1212,7 @@ static int omap_wakeup(struct usb_gadget *gadget)
/* NOTE: non-OTG systems may use SRP TOO... */
} else if (!(udc->devstat & UDC_ATT)) {
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
retval = otg_start_srp(udc->transceiver->otg);
}
spin_unlock_irqrestore(&udc->lock, flags);
@ -1343,7 +1344,7 @@ static int omap_vbus_draw(struct usb_gadget *gadget, unsigned mA)
struct omap_udc *udc;
udc = container_of(gadget, struct omap_udc, gadget);
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
return usb_phy_set_power(udc->transceiver, mA);
return -EOPNOTSUPP;
}
@ -1792,12 +1793,12 @@ static void devstate_irq(struct omap_udc *udc, u16 irq_src)
if (devstat & UDC_ATT) {
udc->gadget.speed = USB_SPEED_FULL;
VDBG("connect\n");
if (!udc->transceiver)
if (IS_ERR_OR_NULL(udc->transceiver))
pullup_enable(udc);
// if (driver->connect) call it
} else if (udc->gadget.speed != USB_SPEED_UNKNOWN) {
udc->gadget.speed = USB_SPEED_UNKNOWN;
if (!udc->transceiver)
if (IS_ERR_OR_NULL(udc->transceiver))
pullup_disable(udc);
DBG("disconnect, gadget %s\n",
udc->driver->driver.name);
@ -1837,12 +1838,12 @@ static void devstate_irq(struct omap_udc *udc, u16 irq_src)
udc->driver->suspend(&udc->gadget);
spin_lock(&udc->lock);
}
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
usb_phy_set_suspend(
udc->transceiver, 1);
} else {
VDBG("resume\n");
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
usb_phy_set_suspend(
udc->transceiver, 0);
if (udc->gadget.speed == USB_SPEED_FULL
@ -2154,7 +2155,7 @@ static int omap_udc_start(struct usb_gadget_driver *driver,
omap_writew(UDC_IRQ_SRC_MASK, UDC_IRQ_SRC);
/* connect to bus through transceiver */
if (udc->transceiver) {
if (!IS_ERR_OR_NULL(udc->transceiver)) {
status = otg_set_peripheral(udc->transceiver->otg,
&udc->gadget);
if (status < 0) {
@ -2201,7 +2202,7 @@ static int omap_udc_stop(struct usb_gadget_driver *driver)
if (machine_without_vbus_sense())
omap_vbus_session(&udc->gadget, 0);
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
(void) otg_set_peripheral(udc->transceiver->otg, NULL);
else
pullup_disable(udc);
@ -2866,7 +2867,7 @@ static int __init omap_udc_probe(struct platform_device *pdev)
* but not having one probably means no VBUS detection.
*/
xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (xceiv)
if (!IS_ERR_OR_NULL(xceiv))
type = xceiv->label;
else if (config->otg) {
DBG("OTG requires external transceiver!\n");
@ -2898,7 +2899,7 @@ static int __init omap_udc_probe(struct platform_device *pdev)
case 16:
case 19:
case 25:
if (!xceiv) {
if (IS_ERR_OR_NULL(xceiv)) {
DBG("external transceiver not registered!\n");
type = "unknown";
}
@ -3010,7 +3011,7 @@ cleanup1:
udc = NULL;
cleanup0:
if (xceiv)
if (!IS_ERR_OR_NULL(xceiv))
usb_put_phy(xceiv);
if (cpu_is_omap16xx() || cpu_is_omap24xx() || cpu_is_omap7xx()) {
@ -3040,7 +3041,7 @@ static int __exit omap_udc_remove(struct platform_device *pdev)
udc->done = &done;
pullup_disable(udc);
if (udc->transceiver) {
if (!IS_ERR_OR_NULL(udc->transceiver)) {
usb_put_phy(udc->transceiver);
udc->transceiver = NULL;
}

11
drivers/usb/gadget/pxa25x_udc.c
View File

@ -21,6 +21,7 @@
#include <linux/ioport.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/init.h>
@ -993,7 +994,7 @@ static int pxa25x_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
udc = container_of(_gadget, struct pxa25x_udc, gadget);
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
return usb_phy_set_power(udc->transceiver, mA);
return -EOPNOTSUPP;
}
@ -1299,7 +1300,7 @@ fail:
DMSG("registered gadget driver '%s'\n", driver->driver.name);
/* connect to bus through transceiver */
if (dev->transceiver) {
if (!IS_ERR_OR_NULL(dev->transceiver)) {
retval = otg_set_peripheral(dev->transceiver->otg,
&dev->gadget);
if (retval) {
@ -1359,7 +1360,7 @@ static int pxa25x_stop(struct usb_gadget_driver *driver)
stop_activity(dev, driver);
local_irq_enable();
if (dev->transceiver)
if (!IS_ERR_OR_NULL(dev->transceiver))
(void) otg_set_peripheral(dev->transceiver->otg, NULL);
driver->unbind(&dev->gadget);
@ -2237,7 +2238,7 @@ lubbock_fail0:
if (gpio_is_valid(dev->mach->gpio_pullup))
gpio_free(dev->mach->gpio_pullup);
err_gpio_pullup:
if (dev->transceiver) {
if (!IS_ERR_OR_NULL(dev->transceiver)) {
usb_put_phy(dev->transceiver);
dev->transceiver = NULL;
}
@ -2279,7 +2280,7 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev)
clk_put(dev->clk);
if (dev->transceiver) {
if (!IS_ERR_OR_NULL(dev->transceiver)) {
usb_put_phy(dev->transceiver);
dev->transceiver = NULL;
}

11
drivers/usb/gadget/pxa27x_udc.c
View File

@ -13,6 +13,7 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/list.h>
@ -1573,7 +1574,7 @@ static int should_enable_udc(struct pxa_udc *udc)
int put_on;
put_on = ((udc->pullup_on) && (udc->driver));
put_on &= ((udc->vbus_sensed) || (!udc->transceiver));
put_on &= ((udc->vbus_sensed) || (IS_ERR_OR_NULL(udc->transceiver)));
return put_on;
}
@ -1594,7 +1595,7 @@ static int should_disable_udc(struct pxa_udc *udc)
int put_off;
put_off = ((!udc->pullup_on) || (!udc->driver));
put_off |= ((!udc->vbus_sensed) && (udc->transceiver));
put_off |= ((!udc->vbus_sensed) && (!IS_ERR_OR_NULL(udc->transceiver)));
return put_off;
}
@ -1665,7 +1666,7 @@ static int pxa_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA)
struct pxa_udc *udc;
udc = to_gadget_udc(_gadget);
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
return usb_phy_set_power(udc->transceiver, mA);
return -EOPNOTSUPP;
}
@ -1834,7 +1835,7 @@ static int pxa27x_udc_start(struct usb_gadget_driver *driver,
dev_dbg(udc->dev, "registered gadget driver '%s'\n",
driver->driver.name);
if (udc->transceiver) {
if (!IS_ERR_OR_NULL(udc->transceiver)) {
retval = otg_set_peripheral(udc->transceiver->otg,
&udc->gadget);
if (retval) {
@ -1908,7 +1909,7 @@ static int pxa27x_udc_stop(struct usb_gadget_driver *driver)
dev_info(udc->dev, "unregistered gadget driver '%s'\n",
driver->driver.name);
if (udc->transceiver)
if (!IS_ERR_OR_NULL(udc->transceiver))
return otg_set_peripheral(udc->transceiver->otg, NULL);
return 0;
}

9
drivers/usb/gadget/s3c-hsudc.c
View File

@ -24,6 +24,7 @@
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
@ -1165,7 +1166,7 @@ static int s3c_hsudc_start(struct usb_gadget *gadget,
}
/* connect to bus through transceiver */
if (hsudc->transceiver) {
if (!IS_ERR_OR_NULL(hsudc->transceiver)) {
ret = otg_set_peripheral(hsudc->transceiver->otg,
&hsudc->gadget);
if (ret) {
@ -1220,7 +1221,7 @@ static int s3c_hsudc_stop(struct usb_gadget *gadget,
s3c_hsudc_stop_activity(hsudc);
spin_unlock_irqrestore(&hsudc->lock, flags);
if (hsudc->transceiver)
if (!IS_ERR_OR_NULL(hsudc->transceiver))
(void) otg_set_peripheral(hsudc->transceiver->otg, NULL);
disable_irq(hsudc->irq);
@ -1249,7 +1250,7 @@ static int s3c_hsudc_vbus_draw(struct usb_gadget *gadget, unsigned mA)
if (!hsudc)
return -ENODEV;
if (hsudc->transceiver)
if (!IS_ERR_OR_NULL(hsudc->transceiver))
return usb_phy_set_power(hsudc->transceiver, mA);
return -EOPNOTSUPP;
@ -1385,7 +1386,7 @@ err_irq:
err_remap:
release_mem_region(res->start, resource_size(res));
err_res:
if (hsudc->transceiver)
if (!IS_ERR_OR_NULL(hsudc->transceiver))
usb_put_phy(hsudc->transceiver);
regulator_bulk_free(ARRAY_SIZE(hsudc->supplies), hsudc->supplies);

5
drivers/usb/host/ehci-fsl.c
View File

@ -27,6 +27,7 @@
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>
@ -146,7 +147,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver,
dev_dbg(&pdev->dev, "hcd=0x%p ehci=0x%p, transceiver=0x%p\n",
hcd, ehci, ehci->transceiver);
if (ehci->transceiver) {
if (!IS_ERR_OR_NULL(ehci->transceiver)) {
retval = otg_set_host(ehci->transceiver->otg,
&ehci_to_hcd(ehci)->self);
if (retval) {
@ -192,7 +193,7 @@ static void usb_hcd_fsl_remove(struct usb_hcd *hcd,
struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data;
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
if (ehci->transceiver) {
if (!IS_ERR_OR_NULL(ehci->transceiver)) {
otg_set_host(ehci->transceiver->otg, NULL);
usb_put_phy(ehci->transceiver);
}

2
drivers/usb/host/ehci-msm.c
View File

@ -146,7 +146,7 @@ static int ehci_msm_probe(struct platform_device *pdev)
* management.
*/
phy = usb_get_phy(USB_PHY_TYPE_USB2);
if (!phy) {
if (IS_ERR_OR_NULL(phy)) {
dev_err(&pdev->dev, "unable to find transceiver\n");
ret = -ENODEV;
goto unmap;

7
drivers/usb/host/ehci-mv.c
View File

@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/usb/otg.h>
#include <linux/platform_data/mv_usb.h>
@ -254,7 +255,7 @@ static int mv_ehci_probe(struct platform_device *pdev)
if (ehci_mv->mode == MV_USB_MODE_OTG) {
#ifdef CONFIG_USB_OTG_UTILS
ehci_mv->otg = usb_get_phy(USB_PHY_TYPE_USB2);
if (!ehci_mv->otg) {
if (IS_ERR_OR_NULL(ehci_mv->otg)) {
dev_err(&pdev->dev,
"unable to find transceiver\n");
retval = -ENODEV;
@ -302,7 +303,7 @@ err_set_vbus:
pdata->set_vbus(0);
#ifdef CONFIG_USB_OTG_UTILS
err_put_transceiver:
if (ehci_mv->otg)
if (!IS_ERR_OR_NULL(ehci_mv->otg))
usb_put_phy(ehci_mv->otg);
#endif
err_disable_clk:
@ -331,7 +332,7 @@ static int mv_ehci_remove(struct platform_device *pdev)
if (hcd->rh_registered)
usb_remove_hcd(hcd);
if (ehci_mv->otg) {
if (!IS_ERR_OR_NULL(ehci_mv->otg)) {
otg_set_host(ehci_mv->otg->otg, NULL);
usb_put_phy(ehci_mv->otg);
}

7
drivers/usb/host/ehci-tegra.c
View File

@ -17,6 +17,7 @@
*/
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/platform_data/tegra_usb.h>
#include <linux/irq.h>
@ -750,7 +751,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
#ifdef CONFIG_USB_OTG_UTILS
if (pdata->operating_mode == TEGRA_USB_OTG) {
tegra->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
if (tegra->transceiver)
if (!IS_ERR_OR_NULL(tegra->transceiver))
otg_set_host(tegra->transceiver->otg, &hcd->self);
}
#endif
@ -773,7 +774,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
fail:
#ifdef CONFIG_USB_OTG_UTILS
if (tegra->transceiver) {
if (!IS_ERR_OR_NULL(tegra->transceiver)) {
otg_set_host(tegra->transceiver->otg, NULL);
usb_put_phy(tegra->transceiver);
}
@ -808,7 +809,7 @@ static int tegra_ehci_remove(struct platform_device *pdev)
pm_runtime_put_noidle(&pdev->dev);
#ifdef CONFIG_USB_OTG_UTILS
if (tegra->transceiver) {
if (!IS_ERR_OR_NULL(tegra->transceiver)) {
otg_set_host(tegra->transceiver->otg, NULL);
usb_put_phy(tegra->transceiver);
}

5
drivers/usb/host/ohci-omap.c
View File

@ -18,6 +18,7 @@
#include <linux/jiffies.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <mach/hardware.h>
@ -212,7 +213,7 @@ static int ohci_omap_init(struct usb_hcd *hcd)
#ifdef CONFIG_USB_OTG
if (need_transceiver) {
ohci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
if (ohci->transceiver) {
if (!IS_ERR_OR_NULL(ohci->transceiver)) {
int status = otg_set_host(ohci->transceiver->otg,
&ohci_to_hcd(ohci)->self);
dev_dbg(hcd->self.controller, "init %s transceiver, status %d\n",
@ -403,7 +404,7 @@ usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
usb_remove_hcd(hcd);
if (ohci->transceiver) {
if (!IS_ERR_OR_NULL(ohci->transceiver)) {
(void) otg_set_host(ohci->transceiver->otg, 0);
usb_put_phy(ohci->transceiver);
}

3
drivers/usb/musb/am35x.c
View File

@ -29,6 +29,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
@ -365,7 +366,7 @@ static int am35x_musb_init(struct musb *musb)
usb_nop_xceiv_register();
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (!musb->xceiv)
if (IS_ERR_OR_NULL(musb->xceiv))
return -ENODEV;
if (is_host_enabled(musb))

3
drivers/usb/musb/blackfin.c
View File

@ -15,6 +15,7 @@
#include <linux/list.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/prefetch.h>
@ -416,7 +417,7 @@ static int bfin_musb_init(struct musb *musb)
usb_nop_xceiv_register();
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (!musb->xceiv) {
if (IS_ERR_OR_NULL(musb->xceiv)) {
gpio_free(musb->config->gpio_vrsel);
return -ENODEV;
}

3
drivers/usb/musb/da8xx.c
View File

@ -29,6 +29,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
@ -426,7 +427,7 @@ static int da8xx_musb_init(struct musb *musb)
usb_nop_xceiv_register();
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (!musb->xceiv)
if (IS_ERR_OR_NULL(musb->xceiv))
goto fail;
if (is_host_enabled(musb))

3
drivers/usb/musb/davinci.c
View File

@ -28,6 +28,7 @@
#include <linux/list.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
@ -385,7 +386,7 @@ static int davinci_musb_init(struct musb *musb)
usb_nop_xceiv_register();
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (!musb->xceiv)
if (IS_ERR_OR_NULL(musb->xceiv))
goto unregister;
musb->mregs += DAVINCI_BASE_OFFSET;

3
drivers/usb/musb/musb_dsps.c
View File

@ -31,6 +31,7 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
@ -377,7 +378,7 @@ static int dsps_musb_init(struct musb *musb)
/* NOP driver needs change if supporting dual instance */
usb_nop_xceiv_register();
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (!musb->xceiv)
if (IS_ERR_OR_NULL(musb->xceiv))
return -ENODEV;
/* Returns zero if e.g. not clocked */

2
drivers/usb/musb/omap2430.c
View File

@ -320,7 +320,7 @@ static int omap2430_musb_init(struct musb *musb)
* which needs a driver, drivers aren't always needed.
*/
musb->xceiv = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
if (!musb->xceiv) {
if (IS_ERR_OR_NULL(musb->xceiv)) {
pr_err("HS USB OTG: no transceiver configured\n");
return -ENODEV;
}

3
drivers/usb/musb/tusb6010.c
View File

@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/prefetch.h>
#include <linux/usb.h>
@ -1079,7 +1080,7 @@ static int tusb_musb_init(struct musb *musb)
usb_nop_xceiv_register();
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (!musb->xceiv)
if (IS_ERR_OR_NULL(musb->xceiv))
return -ENODEV;
pdev = to_platform_device(musb->controller);

3
drivers/usb/musb/ux500.c
View File

@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/platform_device.h>
@ -38,7 +39,7 @@ struct ux500_glue {
static int ux500_musb_init(struct musb *musb)
{
musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
if (!musb->xceiv) {
if (IS_ERR_OR_NULL(musb->xceiv)) {
pr_err("HS USB OTG: no transceiver configured\n");
return -ENODEV;
}

4
drivers/usb/otg/otg.c
View File

@ -67,7 +67,7 @@ struct usb_phy *devm_usb_get_phy(struct device *dev, enum usb_phy_type type)
return NULL;
phy = usb_get_phy(type);
if (phy) {
if (!IS_ERR(phy)) {
*ptr = phy;
devres_add(dev, ptr);
} else
@ -82,7 +82,7 @@ EXPORT_SYMBOL(devm_usb_get_phy);
* @type - the type of the phy the controller requires
*
* Returns the phy driver, after getting a refcount to it; or
* null if there is no such phy. The caller is responsible for
* -ENODEV if there is no such phy. The caller is responsible for
* calling usb_put_phy() to release that count.
*
* For use by USB host and peripheral drivers.