From: Eric Sesterhenn <snakebyte@gmx.de>
Date: Tue, 10 Oct 2006 21:45:45 +0000 (-0700)
Subject: [PATCH] zd1201: Possible NULL dereference
X-Git-Tag: v2.6.19-rc3~13^2~1^2~4
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=683f8c9e00d2aa911382186ca891bd221efaea74;p=linux-2.6

[PATCH] zd1201: Possible NULL dereference

If we enter the if(!zd) and set free to 1, we dereference zd in the exit
code.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index 30057a335a..36b29ff058 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -193,10 +193,8 @@ static void zd1201_usbrx(struct urb *urb)
 	struct sk_buff *skb;
 	unsigned char type;
 
-	if (!zd) {
-		free = 1;
-		goto exit;
-	}
+	if (!zd)
+		return;
 
 	switch(urb->status) {
 		case -EILSEQ: