drm/nouveau: add nv_encoder pointer check for NULL

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[ Upstream commit 55b94bb8c4 ]

Pointer nv_encoder could be dereferenced at nouveau_connector.c
in case it's equal to NULL by jumping to goto label.
This patch adds a NULL-check to avoid it.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 3195c5f978 ("drm/nouveau: set encoder for lvds")
Signed-off-by: Natalia Petrova <n.petrova@fintech.ru>
Reviewed-by: Lyude Paul <lyude@redhat.com>
[Fixed patch title]
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512103320.82234-1-n.petrova@fintech.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>

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This commit is contained in:

Natalia Petrova 2023-05-12 13:33:20 +03:00 • committed by Greg Kroah-Hartman

parent fb725beca6

commit 62aecf23f3

1 changed files with 2 additions and 1 deletions

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drivers/gpu/drm/nouveau/nouveau_connector.c

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