Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.8 09/12] drm/amd/display: fix return value check for hdcp_work | Date | Mon, 5 Oct 2020 10:44:57 -0400 |
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From: Flora Cui <flora.cui@amd.com>
[ Upstream commit 898c7302f4de1d91065e80fc46552b3ec70894ff ]
max_caps might be 0, thus hdcp_work might be ZERO_SIZE_PTR
Signed-off-by: Flora Cui <flora.cui@amd.com> Reviewed-by: Feifei Xu <Feifei.Xu@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_hdcp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c index 949d10ef83040..6dd1f3f8d9903 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c @@ -568,7 +568,7 @@ struct hdcp_workqueue *hdcp_create_workqueue(struct amdgpu_device *adev, struct int i = 0; hdcp_work = kcalloc(max_caps, sizeof(*hdcp_work), GFP_KERNEL); - if (hdcp_work == NULL) + if (ZERO_OR_NULL_PTR(hdcp_work)) return NULL; hdcp_work->srm = kcalloc(PSP_HDCP_SRM_FIRST_GEN_MAX_SIZE, sizeof(*hdcp_work->srm), GFP_KERNEL); -- 2.25.1
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