[PATCH] drm/xen: fix passing zero to 'PTR_ERR' warning

[Ding Xiang <dingxiang@xxxxxxxxxxxxxxxxxxxx>]

Fix a static code checker warning:
    drivers/gpu/drm/xen/xen_drm_front.c:404 xen_drm_drv_dumb_create()
    warn: passing zero to 'PTR_ERR'

Signed-off-by: Ding Xiang <dingxiang@xxxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/xen/xen_drm_front.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 4be49c1..3741420 100644
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -401,7 +401,7 @@ static int xen_drm_drv_dumb_create(struct drm_file *filp,
 
 	obj = xen_drm_front_gem_create(dev, args->size);
 	if (IS_ERR_OR_NULL(obj)) {
-		ret = PTR_ERR(obj);
+		ret = PTR_ERR_OR_ZERO(obj);
 		goto fail;
 	}
 
-- 
1.9.1



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