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Fix an error-path oops.

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Thomas Hellstrom 2007-01-31 11:03:53 +01:00
parent d399fcf46f
commit 36d50687dd
1 changed files with 4 additions and 2 deletions
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6
linux-core/drm_bo.c
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@ -373,11 +373,13 @@ static void drm_bo_base_deref_locked(drm_file_t * priv, drm_user_object_t * uo)
static void drm_bo_usage_deref_unlocked(drm_buffer_object_t * bo)
{
drm_device_t *dev = bo->dev;
if (atomic_dec_and_test(&bo->usage)) {
mutex_lock(&bo->dev->struct_mutex);
mutex_lock(&dev->struct_mutex);
if (atomic_read(&bo->usage) == 0)
drm_bo_destroy_locked(bo);
mutex_unlock(&bo->dev->struct_mutex);
mutex_unlock(&dev->struct_mutex);
}
}