From: Hersen Wu hersenxs.wu@amd.com
[ Upstream commit 025ce392b5f213696ca0af3e07735d0fae020694 ]
[Why] when amdgpu_dm_update_connector_after_detect is called two times successively with valid sink, memory allocated of aconnector->timing_requested for the first call is not free. this causes memeleak.
[How] allocate memory only when aconnector->timing_requested is null.
Reviewed-by: Qingqing Zhuo Qingqing.Zhuo@amd.com Acked-by: Qingqing Zhuo qingqing.zhuo@amd.com Signed-off-by: Hersen Wu hersenxs.wu@amd.com Tested-by: Daniel Wheeler daniel.wheeler@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 | 9 ++++++--- 1 file changed, 6 insertions(+), 3 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 a01fd41643fc2..5dced13f4ae8d 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3094,9 +3094,12 @@ void amdgpu_dm_update_connector_after_detect( aconnector->edid); }
- aconnector->timing_requested = kzalloc(sizeof(struct dc_crtc_timing), GFP_KERNEL); - if (!aconnector->timing_requested) - dm_error("%s: failed to create aconnector->requested_timing\n", __func__); + if (!aconnector->timing_requested) { + aconnector->timing_requested = + kzalloc(sizeof(struct dc_crtc_timing), GFP_KERNEL); + if (!aconnector->timing_requested) + dm_error("failed to create aconnector->requested_timing\n"); + }
drm_connector_update_edid_property(connector, aconnector->edid); amdgpu_dm_update_freesync_caps(connector, aconnector->edid);