airo: return from set_wep_key() when key length is zero
Even if keylen == 0 is a bug and should not really happen, better avoid
possibility of passing bad value to firmware.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 698d567..dc5018a 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -5255,7 +5255,8 @@
WepKeyRid wkr;
int rc;
- WARN_ON(keylen == 0);
+ if (WARN_ON(keylen == 0))
+ return -1;
memset(&wkr, 0, sizeof(wkr));
wkr.len = cpu_to_le16(sizeof(wkr));