From: Pontus Fuchs <pontus.fuchs@gmail.com>
Date: Mon, 5 Nov 2012 20:17:51 +0000 (+0100)
Subject: ar5523: Don't dereference sta if NULL
X-Git-Tag: v3.8-rc1~139^2~17^2~231
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9ee01b30fdc85a4ab5b0836ad98ac0ae5092fb4f;p=platform%2Fkernel%2Flinux-exynos.git

ar5523: Don't dereference sta if NULL

A missing else caused a potential NULL dereference.

Reported-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c
index 4bd7714..7157f7d 100644
--- a/drivers/net/wireless/ath/ar5523/ar5523.c
+++ b/drivers/net/wireless/ath/ar5523/ar5523.c
@@ -1196,8 +1196,8 @@ static void ar5523_create_rateset(struct ar5523 *ar,
 	if (!sta) {
 		ar5523_info(ar, "STA not found. Cannot set rates\n");
 		sta_rate_set = bss_conf->basic_rates;
-	}
-	sta_rate_set = sta->supp_rates[ar->hw->conf.channel->band];
+	} else
+		sta_rate_set = sta->supp_rates[ar->hw->conf.channel->band];
 
 	ar5523_dbg(ar, "sta rate_set = %08x\n", sta_rate_set);