[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>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index 30057a335a7b..36b29ff05814 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: