ttm: Return -ERESTART when a signal interrupts bo eviction.
A bug caused the ttm code to just terminate the wait when a signal
was received while waiting for the GPU to release a buffer object that
was to be evicted.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 1587aeca..b82ba6e 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -527,9 +527,12 @@
ret = ttm_bo_wait(bo, false, interruptible, no_wait);
spin_unlock(&bo->lock);
- if (ret && ret != -ERESTART) {
- printk(KERN_ERR TTM_PFX "Failed to expire sync object before "
- "buffer eviction.\n");
+ if (unlikely(ret != 0)) {
+ if (ret != -ERESTART) {
+ printk(KERN_ERR TTM_PFX
+ "Failed to expire sync object before "
+ "buffer eviction.\n");
+ }
goto out;
}