The cases of vmw_user_bo_synccpu_grab failing with -ERESTARTSYS or -EBUSY
are handled in vmw_user_bo_synccpu_ioctl by not printing an error message.
However, the error value gets discarded, indicating success. This leads
to rendering glitches and a reported drm error on the next ioctl call to
release the handle.
This patch propagates the error value from vmw_user_synccpu_grab.
Signed-off-by: Philipp Sieweck <p...@informatik.uni-kiel.de>
---
drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
index 31aecc46624b..81fe4dc5e6ab 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
@@ -621,6 +621,8 @@ int vmw_user_bo_synccpu_ioctl(struct drm_device *dev, void
*data,
(unsigned int) arg->handle);
return ret;
}
+ if (unlikely(ret != 0))
+ return ret;
break;
case drm_vmw_synccpu_release:
ret = vmw_user_bo_synccpu_release(file_priv,
--
2.35.1
