mwl8k: Fixing sta dereference when ieee80211_tx_info->control.sta is NULL

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Following oops was seen on SMP machine

>BUG: unable to handle kernel NULL pointer dereference at 00000012
>IP: [<f8c56691>] mwl8k_tx+0x20e/0x561 [mwl8k]
>*pde = 00000000
>Oops: 0000 [#1] SMP
>Modules linked in: mwl8k mac80211 cfg80211 [last unloaded: cfg80211]

As ieee80211_tx_info->control.sta may be NULL during ->tx call, avoiding sta
dereference in such scenario with the following patch.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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Yogesh Ashok Powar 2011-07-13 17:42:06 +05:30 • committed by John W. Linville

parent 5a865bad44

commit 16c929df08

1 changed files with 3 additions and 3 deletions

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drivers/net/wireless/mwl8k.c

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