linux-kernel - [PATCH 5.13 750/800] staging: rtl8723bs: Fix an error handling path

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Date:   Mon, 12 Jul 2021 08:12:53 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.13 750/800] staging: rtl8723bs: Fix an error handling path

From: Christophe JAILLET <christophe.jaillet@...adoo.fr>

[ Upstream commit eb64c6f60ed5406da496cf772fee4b29674bcbb1 ]

'ret' is known to be 0 at this point. It must be set to -ENOMEM if a
memory allocation occurs.

Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Link: https://lore.kernel.org/r/a9533d1594900152e1e64e9f09e54240e3b7062a.1624177169.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/staging/rtl8723bs/os_dep/ioctl_linux.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
index 5088c3731b6d..6d0d0beed402 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
@@ -420,8 +420,10 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
 			wep_key_len = wep_key_len <= 5 ? 5 : 13;
 			wep_total_len = wep_key_len + FIELD_OFFSET(struct ndis_802_11_wep, KeyMaterial);
 			pwep = kzalloc(wep_total_len, GFP_KERNEL);
-			if (!pwep)
+			if (!pwep) {
+				ret = -ENOMEM;
 				goto exit;
+			}
 
 			pwep->KeyLength = wep_key_len;
 			pwep->Length = wep_total_len;
-- 
2.30.2