From: Felipe Pena <felipensp@gmail.com>
To: Stefano Brivio <stefano.brivio@polimi.it>,
"John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org, b43-dev@lists.infradead.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Felipe Pena <felipensp@gmail.com>
Subject: [PATCH] drivers: net: wireless: b43: Fix possible NULL ptr dereference
Date: Wed, 16 Oct 2013 21:40:24 -0300 [thread overview]
Message-ID: <1381970424-4709-1-git-send-email-felipensp@gmail.com> (raw)
On the ternary expression the 'e' variable could be NULL dereferenced,
when b43_nphy_get_rf_ctl_over_rev7 function returns NULL.
Signed-off-by: Felipe Pena <felipensp@gmail.com>
---
drivers/net/wireless/b43/phy_n.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 7c970d3..05ee7f1 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -164,7 +164,8 @@ static void b43_nphy_rf_ctl_override_rev7(struct b43_wldev *dev, u16 field,
}
en_addr = en_addrs[override][i];
- val_addr = (i == 0) ? e->val_addr_core0 : e->val_addr_core1;
+ if (e)
+ val_addr = (i == 0) ? e->val_addr_core0 : e->val_addr_core1;
if (off) {
b43_phy_mask(dev, en_addr, ~en_mask);
--
1.7.10.4
reply other threads:[~2013-10-17 0:40 UTC|newest]
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