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Groups > linux.kernel > #1598933

[PATCH] drm: virtio: fix kmem_cache_alloc error check

From Gerd Hoffmann <kraxel@redhat.com>
Newsgroups linux.kernel
Subject [PATCH] drm: virtio: fix kmem_cache_alloc error check
Date 2017-03-13 09:30 +0100
Message-ID <tktwB-6ak-3@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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kmem_cache_alloc returns NULL on error, not ERR_PTR.

Fixes: f5985bf9cadd4e3ed8d5d9a9cbbb2e39cdb81cd9
Reported-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_vq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 472e349..9eb96fb2 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -97,8 +97,8 @@ void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev)
 	struct virtio_gpu_vbuffer *vbuf;
 
 	vbuf = kmem_cache_alloc(vgdev->vbufs, GFP_KERNEL);
-	if (IS_ERR(vbuf))
-		return ERR_CAST(vbuf);
+	if (!vbuf)
+		return ERR_PTR(-ENOMEM);
 	memset(vbuf, 0, VBUFFER_SIZE);
 
 	BUG_ON(size > MAX_INLINE_CMD_SIZE);
-- 
1.8.3.1

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[PATCH] drm: virtio: fix kmem_cache_alloc error check Gerd Hoffmann <kraxel@redhat.com> - 2017-03-13 09:30 +0100
  Re: [PATCH] drm: virtio: fix kmem_cache_alloc error check Daniel Vetter <daniel@ffwll.ch> - 2017-03-13 11:30 +0100

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