linux-kernel - [PATCH] drm/xen: fix passing zero to 'PTR

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Date:   Mon, 30 Mar 2020 17:59:07 +0800
From:   Ding Xiang <dingxiang@...s.chinamobile.com>
To:     oleksandr_andrushchenko@...m.com, airlied@...ux.ie, daniel@...ll.ch
Cc:     dri-devel@...ts.freedesktop.org, xen-devel@...ts.xenproject.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/xen: fix passing zero to 'PTR_ERR' warning

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@...s.chinamobile.com>
---
 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