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| author | Eric Anholt <eric@anholt.net> | 2015-05-14 11:33:08 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2015-06-04 14:15:35 -0700 |
| commit | 660b630f8de24d4c73f5f2982b65ed2537735c1d (patch) | |
| tree | 766dd3a97d0ab505af92796d756221500e7113c5 | |
| parent | eb4fdfd674ab976fed764b6c606c9963c183906a (diff) | |
| download | linux-660b630f8de24d4c73f5f2982b65ed2537735c1d.tar.gz | |
drm/vc4: Don't forget to lock around BO creation in the overflow work.
The overflow handler notably walks through our BO cache structs, which
are protected by this lock.
Signed-off-by: Eric Anholt <eric@anholt.net>
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_irq.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_irq.c b/drivers/gpu/drm/vc4/vc4_irq.c index 5af0e6ff5318..c2f539c3b6c6 100644 --- a/drivers/gpu/drm/vc4/vc4_irq.c +++ b/drivers/gpu/drm/vc4/vc4_irq.c @@ -37,7 +37,9 @@ vc4_overflow_mem_work(struct work_struct *work) struct drm_device *dev = vc4->dev; struct vc4_bo *bo; + mutex_lock(&dev->struct_mutex); bo = vc4_bo_create(dev, 256 * 1024); + mutex_unlock(&dev->struct_mutex); if (!bo) { DRM_ERROR("Couldn't allocate binner overflow mem\n"); return; |