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drm/amd/display: fix return value check for hdcp_work 

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>
This commit is contained in:
Flora Cui 2020-09-23 14:42:59 +08:00 committed by Alex Deucher
parent 0c7014154d
commit 898c7302f4
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
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@ -604,7 +604,7 @@ 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);