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staging: ath6kl: Fixing a NULL pointer exception

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The driver was dereferencing a NULL pointer because of the device instance
being registered via the set_wiphy_dev() function. The function
ar6000_avail_ev() was passing the argument as NULL instead of using the one
returned by the MMC stack through the probe callback.

Signed-off-by: Vipin Mehta <vmehta@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Vipin Mehta 2011-02-18 13:13:02 -08:00 committed by Greg Kroah-Hartman
parent 6642a67c55
commit da101d5635
1 changed files with 10 additions and 7 deletions
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17
drivers/staging/ath6kl/os/linux/ar6000_drv.c
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@ -1604,6 +1604,14 @@ ar6000_avail_ev(void *context, void *hif_handle)
struct wireless_dev *wdev;
#endif /* ATH6K_CONFIG_CFG80211 */
int init_status = 0;
HIF_DEVICE_OS_DEVICE_INFO osDevInfo;
memset(&osDevInfo, 0, sizeof(osDevInfo));
if (HIFConfigureDevice(hif_handle, HIF_DEVICE_GET_OS_DEVICE,
&osDevInfo, sizeof(osDevInfo))) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("%s: Failed to get OS device instance\n", __func__));
return A_ERROR;
}
AR_DEBUG_PRINTF(ATH_DEBUG_INFO,("ar6000_available\n"));
@ -1623,7 +1631,7 @@ ar6000_avail_ev(void *context, void *hif_handle)
device_index = i;
#ifdef ATH6K_CONFIG_CFG80211
wdev = ar6k_cfg80211_init(NULL);
wdev = ar6k_cfg80211_init(osDevInfo.pOSDevice);
if (IS_ERR(wdev)) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERR, ("%s: ar6k_cfg80211_init failed\n", __func__));
return A_ERROR;
@ -1668,12 +1676,7 @@ ar6000_avail_ev(void *context, void *hif_handle)
#ifdef SET_NETDEV_DEV
if (ar_netif) {
HIF_DEVICE_OS_DEVICE_INFO osDevInfo;
A_MEMZERO(&osDevInfo, sizeof(osDevInfo));
if (!HIFConfigureDevice(hif_handle, HIF_DEVICE_GET_OS_DEVICE,
&osDevInfo, sizeof(osDevInfo))) {
SET_NETDEV_DEV(dev, osDevInfo.pOSDevice);
}
SET_NETDEV_DEV(dev, osDevInfo.pOSDevice);
}
#endif