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drm/selftests/test-drm_dp_mst_helper: Fix memory leak in sideband_msg_req_encode_decode

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[ Upstream commit ba3a5ddcf1 ]

Avoid leaking the "out" variable if it is not possible to allocate
the "txmsg" variable.

Fixes: 09234b88ef ("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>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220108165812.46797-1-jose.exposito89@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
José Expósito 2022-01-08 17:58:12 +01:00 committed by Greg Kroah-Hartman
parent 51b82141ff
commit 0728ccb664
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c
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@ -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);