diff options
| author | John W. Linville <linville@tuxdriver.com> | 2010-08-05 13:46:27 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-08-05 16:05:27 -0400 |
| commit | 8f1d2d2be73a98c21e68fe2a26f633892d4abdd1 (patch) | |
| tree | 347a1a6a0621a151151590fd4baa22dcff1c8c35 | |
| parent | c5d2711cb508ff8bc76d88fe442d1c27fb136245 (diff) | |
rtl8180: avoid potential NULL deref in rtl8180_beacon_work
ieee80211_beacon_get can return NULL...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Cc: stable@kernel.org
| -rw-r--r-- | drivers/net/wireless/rtl818x/rtl8180_dev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8180_dev.c b/drivers/net/wireless/rtl818x/rtl8180_dev.c index 1d8178563d76..b50c39aaec05 100644 --- a/drivers/net/wireless/rtl818x/rtl8180_dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c | |||
| @@ -695,6 +695,8 @@ static void rtl8180_beacon_work(struct work_struct *work) | |||
| 695 | 695 | ||
| 696 | /* grab a fresh beacon */ | 696 | /* grab a fresh beacon */ |
| 697 | skb = ieee80211_beacon_get(dev, vif); | 697 | skb = ieee80211_beacon_get(dev, vif); |
| 698 | if (!skb) | ||
| 699 | goto resched; | ||
| 698 | 700 | ||
| 699 | /* | 701 | /* |
| 700 | * update beacon timestamp w/ TSF value | 702 | * update beacon timestamp w/ TSF value |