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| author | Natalia Petrova <n.petrova@fintech.ru> | 2023-05-12 13:33:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-21 15:44:12 +0200 |
| commit | 0456f470fa023e9c31e0bc78e8c31eccfbea0f91 (patch) | |
| tree | f57a1f5df062ab58cdf397eb70ffe530dc5e2aad /drivers/gpu | |
| parent | b1d76d16af2a2bc8946cc6fe0668b21b03d5f0ca (diff) | |
| download | linux-stable-0456f470fa023e9c31e0bc78e8c31eccfbea0f91.tar.gz linux-stable-0456f470fa023e9c31e0bc78e8c31eccfbea0f91.tar.bz2 linux-stable-0456f470fa023e9c31e0bc78e8c31eccfbea0f91.zip | |
drm/nouveau: add nv_encoder pointer check for NULL
[ Upstream commit 55b94bb8c42464bad3d2217f6874aa1a85664eac ]
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: 3195c5f9784a ("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>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_connector.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 048a04701910..85a20fe2709a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -730,7 +730,8 @@ out: #endif nouveau_connector_set_edid(nv_connector, edid); - nouveau_connector_set_encoder(connector, nv_encoder); + if (nv_encoder) + nouveau_connector_set_encoder(connector, nv_encoder); return status; } |