From 153c5d8191c26165dbbd2646448ca7207f7796d0 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Mon, 14 Oct 2019 12:02:01 +0100
Subject: [PATCH] staging: wlan-ng: fix exit return when sme->key_idx >= NUM_WEPKEYS
Git-commit: 153c5d8191c26165dbbd2646448ca7207f7796d0
Patch-mainline: v5.4-rc5
References: bsc#1051510

Currently the exit return path when sme->key_idx >= NUM_WEPKEYS is via
label 'exit' and this checks if result is non-zero, however result has
not been initialized and contains garbage.  Fix this by replacing the
goto with a return with the error code.

Addresses-coverity: ("Uninitialized scalar variable")
Fixes: 0ca6d8e74489 ("Staging: wlan-ng: replace switch-case statements with macro")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191014110201.9874-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/staging/wlan-ng/cfg80211.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/staging/wlan-ng/cfg80211.c
+++ b/drivers/staging/wlan-ng/cfg80211.c
@@ -489,10 +489,8 @@ static int prism2_connect(struct wiphy *
 	/* Set the encryption - we only support wep */
 	if (is_wep) {
 		if (sme->key) {
-			if (sme->key_idx >= NUM_WEPKEYS) {
-				err = -EINVAL;
-				goto exit;
-			}
+			if (sme->key_idx >= NUM_WEPKEYS)
+				return -EINVAL;
 
 			result = prism2_domibset_uint32(wlandev,
 				DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,