From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 8 May 2018 09:26:50 +0000 (+0300)
Subject: drm/xen-front: checking for NULL instead of IS_ERR
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e30ca4bcf0d9ad2c6f5716d6098b935f0d584c76;p=linux.git

drm/xen-front: checking for NULL instead of IS_ERR

drm_dev_alloc() returns error pointers, it never returns NULL.

Fixes: c575b7eeb89f ("drm/xen-front: Add support for Xen PV display frontend")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180508092650.GA661@mwanda
---

diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 1b0ea9ac330eb..8615e8522c7a8 100644
--- a/drivers/gpu/drm/xen/xen_drm_front.c
+++ b/drivers/gpu/drm/xen/xen_drm_front.c
@@ -543,8 +543,8 @@ static int xen_drm_drv_init(struct xen_drm_front_info *front_info)
 	front_info->drm_info = drm_info;
 
 	drm_dev = drm_dev_alloc(&xen_drm_driver, dev);
-	if (!drm_dev) {
-		ret = -ENOMEM;
+	if (IS_ERR(drm_dev)) {
+		ret = PTR_ERR(drm_dev);
 		goto fail;
 	}