From 15296a2a2ee0e49587e420cbb60f6ef0b32e1887 Mon Sep 17 00:00:00 2001 From: "Leo (Sunpeng) Li" Date: Tue, 18 Jul 2017 18:33:23 -0400 Subject: [PATCH 0630/4131] drm/amd/display: Do not release state objects on atomic check fail In any drm ioctl call, drm_atomic_state_clear() is called at the end to destroy the states; even if atomic check fails. Therefore, releasing states on atomic check failure is incorrect. Signed-off-by: Leo (Sunpeng) Li Reviewed-by: Andrey Grodzovsky Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c index be24225..9519757 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c @@ -3139,7 +3139,7 @@ int amdgpu_dm_atomic_check(struct drm_device *dev, conn_state = drm_atomic_get_connector_state(state, &aconnector->base); if (IS_ERR(conn_state)) { ret = PTR_ERR_OR_ZERO(conn_state); - goto fail_crtcs; + goto fail; } dm_conn_state = to_dm_connector_state(conn_state); @@ -3198,7 +3198,7 @@ int amdgpu_dm_atomic_check(struct drm_device *dev, ret = drm_atomic_add_affected_planes(state, crtc); if (ret) - goto fail_crtcs; + goto fail; } } @@ -3260,7 +3260,7 @@ int amdgpu_dm_atomic_check(struct drm_device *dev, crtc_state, false); if (ret) - goto fail_planes; + goto fail; if (dm_plane_state->surface) @@ -3292,13 +3292,12 @@ int amdgpu_dm_atomic_check(struct drm_device *dev, ret = do_aquire_global_lock(dev, state); if (ret) - goto fail_planes; - + goto fail; WARN_ON(dm_state->context); dm_state->context = dc_get_validate_context(dc, set, set_count); if (!dm_state->context) { ret = -EINVAL; - goto fail_planes; + goto fail; } } @@ -3306,15 +3305,7 @@ int amdgpu_dm_atomic_check(struct drm_device *dev, WARN_ON(ret); return ret; -fail_planes: - for (i = 0; i < set_count; i++) - for (j = 0; j < set[i].surface_count; j++) - dc_surface_release(set[i].surfaces[j]); - -fail_crtcs: - for (i = 0; i < set_count; i++) - dc_stream_release(set[i].stream); - +fail: if (ret == -EDEADLK) DRM_DEBUG_KMS("Atomic check stopped due to to deadlock.\n"); else if (ret == -EINTR || ret == -EAGAIN || ret == -ERESTARTSYS) -- 2.7.4