From: "José Expósito" <jose.exposito89@gmail.com>
To: airlied@linux.ie
Cc: daniel@ffwll.ch, lee.jones@linaro.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
"José Expósito" <jose.exposito89@gmail.com>
Subject: [PATCH v2] drm/selftests/test-drm_dp_mst_helper: Fix memory leak in sideband_msg_req_encode_decode
Date: Sat, 8 Jan 2022 17:58:12 +0100 [thread overview]
Message-ID: <20220108165812.46797-1-jose.exposito89@gmail.com> (raw)
Avoid leaking the "out" variable if it is not possible to allocate
the "txmsg" variable.
Fixes: 09234b88ef55 ("drm/selftests/test-drm_dp_mst_helper: Move 'sideband_msg_req_encode_decode' onto the heap")
Addresses-Coverity-ID: 1475685 ("Resource leak")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
---
v2: Improve commit message
---
drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
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..c491429f1a02 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)
+ if (!txmsg) {
+ kfree(out);
return false;
+ }
drm_dp_encode_sideband_req(in, txmsg);
ret = drm_dp_decode_sideband_req(txmsg, out);
--
2.25.1
next reply other threads:[~2022-01-08 16:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-08 16:58 José Expósito [this message]
2022-01-19 15:13 ` [PATCH v2] drm/selftests/test-drm_dp_mst_helper: Fix memory leak in sideband_msg_req_encode_decode Daniel Vetter
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