From 4b5105036afbd21fb810d3f1528f9a26ef3eea7e Mon Sep 17 00:00:00 2001 From: Nicholas Kazlauskas Date: Mon, 28 Jan 2019 09:00:52 -0500 Subject: [PATCH] drm/amd/display: Don't leak memory when updating streams MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [Why] The flip and full structures were allocated but never freed. [How] Free them at the end of the function. There's a small behavioral change here with the function returning early if the allocation fails but we wouldn't should be doing anything in that case anyway. Fixes: c00e0cc0fdc0 ("drm/amd/display: Call into DC once per multiplane flip") Fixes: ea39594e0855 ("drm/amd/display: Perform plane updates only when needed") Signed-off-by: Nicholas Kazlauskas Reviewed-by: Leo Li Tested-by: Michel Dänzer Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) 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 a247cb19077c3..1923f47d3dd69 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4658,8 +4658,10 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state, flip = kzalloc(sizeof(*flip), GFP_KERNEL); full = kzalloc(sizeof(*full), GFP_KERNEL); - if (!flip || !full) + if (!flip || !full) { dm_error("Failed to allocate update bundles\n"); + goto cleanup; + } /* update planes when needed */ for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { @@ -4883,6 +4885,10 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state, dc_state); mutex_unlock(&dm->dc_lock); } + +cleanup: + kfree(flip); + kfree(full); } /*