[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 30057a335a7bc6ccb17b6e645f718485fa70453d..36b29ff058141a712619e55184566b39ce414efd 100644 (file)
--- 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: