linux-kernel - [PATCH] drm/selftest: fix potential memleak in error branch

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Message-Id: <20211117014834.36999-1-bernard@vivo.com>
Date:   Tue, 16 Nov 2021 17:48:28 -0800
From:   Bernard Zhao <bernard@...o.com>
To:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Lee Jones <lee.jones@...aro.org>,
        Bernard Zhao <bernard@...o.com>, Lyude Paul <lyude@...hat.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/selftest: fix potential memleak in error branch

This patch try to fix the potential memleak in error branch.

Signed-off-by: Bernard Zhao <bernard@...o.com>
---
 drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c b/drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
index 6b4759ed6bfd..dbac073ed385 100644
--- a/drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
+++ b/drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
@@ -131,8 +131,10 @@ sideband_msg_req_encode_decode(struct drm_dp_sideband_msg_req_body *in)
 		return false;
 
 	txmsg = kzalloc(sizeof(*txmsg), GFP_KERNEL);
-	if (!txmsg)
-		return false;
+	if (!txmsg) {
+		result = false;
+		goto out;
+	}
 
 	drm_dp_encode_sideband_req(in, txmsg);
 	ret = drm_dp_decode_sideband_req(txmsg, out);
-- 
2.33.1