6.5-stable review patch. If anyone has any objections, please let me know.
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From: Cong Liu liucong2@kylinos.cn
[ Upstream commit 0c3601a2fbfb265ce283651480e30c8e60459112 ]
This patch fixes a null pointer dereference in the error message that is printed when the Display Core (DC) fails to initialize. The original message includes the DC version number, which is undefined if the DC is not initialized.
Fixes: 9788d087caff ("drm/amd/display: improve the message printed when loading DC") Signed-off-by: Cong Liu liucong2@kylinos.cn Reviewed-by: Harry Wentland harry.wentland@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index c9959bd8147db..83d670f0d199b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1690,8 +1690,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) DRM_INFO("Display Core v%s initialized on %s\n", DC_VER, dce_version_to_string(adev->dm.dc->ctx->dce_version)); } else { - DRM_INFO("Display Core v%s failed to initialize on %s\n", DC_VER, - dce_version_to_string(adev->dm.dc->ctx->dce_version)); + DRM_INFO("Display Core failed to initialize with v%s!\n", DC_VER); goto error; }