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mfd: ab8500-core: Use devm_* memory/IRQ and allocation/free routines

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It is better to use devm_* calls, as they allow for easier
and more automatic clean-up. Resources are device allocated,
so when a device is freed, so are all associated resources.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Lee Jones 2012-11-05 16:10:35 +01:00 committed by Samuel Ortiz
parent 84e6de813b
commit 8c4203cb58
1 changed files with 24 additions and 38 deletions
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50
drivers/mfd/ab8500-core.c
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@ -1233,7 +1233,7 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
int i;
u8 value;
ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL);
ab8500 = devm_kzalloc(&pdev->dev, sizeof *ab8500, GFP_KERNEL);
if (!ab8500)
return -ENOMEM;
@ -1243,10 +1243,8 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
ab8500->dev = &pdev->dev;
resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!resource) {
ret = -ENODEV;
goto out_free_ab8500;
}
if (!resource)
return -ENODEV;
ab8500->irq = resource->start;
@ -1269,7 +1267,7 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
ret = get_register_interruptible(ab8500, AB8500_MISC,
AB8500_IC_NAME_REG, &value);
if (ret < 0)
goto out_free_ab8500;
return ret;
ab8500->version = value;
}
@ -1277,7 +1275,7 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
ret = get_register_interruptible(ab8500, AB8500_MISC,
AB8500_REV_REG, &value);
if (ret < 0)
goto out_free_ab8500;
return ret;
ab8500->chip_id = value;
@ -1294,14 +1292,13 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
ab8500->mask_size = AB8500_NUM_IRQ_REGS;
ab8500->irq_reg_offset = ab8500_irq_regoffset;
}
ab8500->mask = kzalloc(ab8500->mask_size, GFP_KERNEL);
ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
if (!ab8500->mask)
return -ENOMEM;
ab8500->oldmask = kzalloc(ab8500->mask_size, GFP_KERNEL);
if (!ab8500->oldmask) {
ret = -ENOMEM;
goto out_freemask;
}
ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
if (!ab8500->oldmask)
return -ENOMEM;
/*
* ab8500 has switched off due to (SWITCH_OFF_STATUS):
* 0x01 Swoff bit programming
@ -1355,37 +1352,37 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
if (ret)
goto out_freeoldmask;
return ret;
for (i = 0; i < ab8500->mask_size; i++)
ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
ret = ab8500_irq_init(ab8500, np);
if (ret)
goto out_freeoldmask;
return ret;
/* Activate this feature only in ab9540 */
/* till tests are done on ab8500 1p2 or later*/
if (is_ab9540(ab8500)) {
ret = request_threaded_irq(ab8500->irq, NULL,
ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
ab8500_hierarchical_irq,
IRQF_ONESHOT | IRQF_NO_SUSPEND,
"ab8500", ab8500);
}
else {
ret = request_threaded_irq(ab8500->irq, NULL,
ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
ab8500_irq,
IRQF_ONESHOT | IRQF_NO_SUSPEND,
"ab8500", ab8500);
if (ret)
goto out_freeoldmask;
return ret;
}
ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs,
ARRAY_SIZE(abx500_common_devs), NULL,
ab8500->irq_base, ab8500->domain);
if (ret)
goto out_freeirq;
return ret;
if (is_ab9540(ab8500))
ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
@ -1396,14 +1393,14 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
ARRAY_SIZE(ab8500_devs), NULL,
ab8500->irq_base, ab8500->domain);
if (ret)
goto out_freeirq;
return ret;
if (is_ab9540(ab8500) || is_ab8505(ab8500))
ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs,
ARRAY_SIZE(ab9540_ab8505_devs), NULL,
ab8500->irq_base, ab8500->domain);
if (ret)
goto out_freeirq;
return ret;
if (!no_bm) {
/* Add battery management devices */
@ -1424,17 +1421,6 @@ static int __devinit ab8500_probe(struct platform_device *pdev)
dev_err(ab8500->dev, "error creating sysfs entries\n");
return ret;
out_freeirq:
free_irq(ab8500->irq, ab8500);
out_freeoldmask:
kfree(ab8500->oldmask);
out_freemask:
kfree(ab8500->mask);
out_free_ab8500:
kfree(ab8500);
return ret;
}
static int __devexit ab8500_remove(struct platform_device *pdev)