linux-kernel - [PATCH 5.10 087/135] staging: rtl8723bs: Fix a resource leak in sd_int

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Date:   Tue, 10 Aug 2021 19:30:21 +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, Hans de Goede <hdegoede@...hat.com>,
        Xiangyang Zhang <xyz.sun.ok@...il.com>
Subject: [PATCH 5.10 087/135] staging: rtl8723bs: Fix a resource leak in sd_int_dpc

From: Xiangyang Zhang <xyz.sun.ok@...il.com>

commit 990e4ad3ddcb72216caeddd6e62c5f45a21e8121 upstream.

The "c2h_evt" variable is not freed when function call
"c2h_evt_read_88xx" failed

Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver")
Reviewed-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Xiangyang Zhang <xyz.sun.ok@...il.com>
Cc: stable <stable@...r.kernel.org>
Link: https://lore.kernel.org/r/20210628152239.5475-1-xyz.sun.ok@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/staging/rtl8723bs/hal/sdio_ops.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/staging/rtl8723bs/hal/sdio_ops.c
+++ b/drivers/staging/rtl8723bs/hal/sdio_ops.c
@@ -989,6 +989,8 @@ void sd_int_dpc(struct adapter *adapter)
 				} else {
 					rtw_c2h_wk_cmd(adapter, (u8 *)c2h_evt);
 				}
+			} else {
+				kfree(c2h_evt);
 			}
 		} else {
 			/* Error handling for malloc fail */