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| author | Ben Skeggs <bskeggs@redhat.com> | 2017-04-05 18:16:14 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2017-04-06 14:19:21 +1000 |
| commit | 2907e8670b6ef253bffb33bf47fd2182969cf2a0 (patch) | |
| tree | 830a0ed370b23ceaf0f8529ff434dd8da570552b /drivers/gpu/drm | |
| parent | d639fbcc102745187f747a21bdcffcf628e174c8 (diff) | |
| download | linux-2907e8670b6ef253bffb33bf47fd2182969cf2a0.tar.gz | |
drm/nouveau/kms/nv50: fix double dma_fence_put() when destroying plane state
When the atomic support was added to nouveau, the DRM core did not do this. However, later in the same merge window, a commit (drm/fence: add in-fences support) was merged that added it, leading to use-after-frees of the fence object. Cc: stable@vger.kernel.org [4.10+] Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_display.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 4405ca1fb3e2..a9182d5e6011 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -995,7 +995,6 @@ nv50_wndw_atomic_destroy_state(struct drm_plane *plane, { struct nv50_wndw_atom *asyw = nv50_wndw_atom(state); __drm_atomic_helper_plane_destroy_state(&asyw->state); - dma_fence_put(asyw->state.fence); kfree(asyw); } @@ -1007,7 +1006,6 @@ nv50_wndw_atomic_duplicate_state(struct drm_plane *plane) if (!(asyw = kmalloc(sizeof(*asyw), GFP_KERNEL))) return NULL; __drm_atomic_helper_plane_duplicate_state(plane, &asyw->state); - asyw->state.fence = NULL; asyw->interval = 1; asyw->sema = armw->sema; asyw->ntfy = armw->ntfy; |