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* [PATCH 1/3] drm/xen-front: checking for NULL instead of IS_ERR
@ 2018-05-08  9:26 ` Dan Carpenter
  0 siblings, 0 replies; 9+ messages in thread
From: Dan Carpenter @ 2018-05-08  9:26 UTC (permalink / raw)
  To: Oleksandr Andrushchenko
  Cc: David Airlie, kernel-janitors, dri-devel, xen-devel

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>

diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 1b0ea9ac330e..8615e8522c7a 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;
 	}
 

^ permalink raw reply related	[flat|nested] 9+ messages in thread
* [PATCH 1/3] drm/xen-front: checking for NULL instead of IS_ERR
@ 2018-05-08  9:26 Dan Carpenter
  0 siblings, 0 replies; 9+ messages in thread
From: Dan Carpenter @ 2018-05-08  9:26 UTC (permalink / raw)
  To: Oleksandr Andrushchenko
  Cc: David Airlie, kernel-janitors, dri-devel, xen-devel

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>

diff --git a/drivers/gpu/drm/xen/xen_drm_front.c b/drivers/gpu/drm/xen/xen_drm_front.c
index 1b0ea9ac330e..8615e8522c7a 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;
 	}
 

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Xen-devel@lists.xenproject.org
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^ permalink raw reply related	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2018-05-08 11:51 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
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2018-05-08  9:26 [PATCH 1/3] drm/xen-front: checking for NULL instead of IS_ERR Dan Carpenter
2018-05-08  9:26 ` Dan Carpenter
2018-05-08  9:34 ` Oleksandr Andrushchenko
2018-05-08  9:34   ` Oleksandr Andrushchenko
2018-05-08 11:50   ` Oleksandr Andrushchenko
2018-05-08 11:50     ` Oleksandr Andrushchenko
2018-05-08 11:50   ` Oleksandr Andrushchenko
2018-05-08  9:34 ` Oleksandr Andrushchenko
  -- strict thread matches above, loose matches on Subject: below --
2018-05-08  9:26 Dan Carpenter

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