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mwifiex: fix NULL pointer dereference error

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In mwifiex_enable_hs, we need to check if
priv->wdev.wiphy->wowlan_config is NULL before accessing its member.
This sometimes cause kernel panic when suspend/resume.

Signed-off-by: Wei-Ning Huang <wnhuang@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Wei-Ning Huang 2016-03-30 18:14:55 +08:00 committed by Kalle Valo
parent 001351881d
commit a5c92f0b6a
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
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@ -509,7 +509,8 @@ int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
if (priv && priv->sched_scanning) {
#ifdef CONFIG_PM
if (!priv->wdev.wiphy->wowlan_config->nd_config) {
if (priv->wdev.wiphy->wowlan_config &&
!priv->wdev.wiphy->wowlan_config->nd_config) {
#endif
mwifiex_dbg(adapter, CMD, "aborting bgscan!\n");
mwifiex_stop_bg_scan(priv);