* [PATCH] drm/virtio: Fix an IS_ERR() vs NULL check in virtio_gpu_object_shmem_init()
@ 2020-06-19 14:29 Dan Carpenter
0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2020-06-19 14:29 UTC (permalink / raw)
To: David Airlie, Daniel Vetter
Cc: Gerd Hoffmann, Daniel Vetter, dri-devel, virtualization,
linux-kernel, kernel-janitors
The drm_gem_shmem_get_pages_sgt() function returns error pointers on
error, it never returns NULL.
Fixes: d323bb44e4d2 ("drm/virtio: Call the right shmem helpers")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/gpu/drm/virtio/virtgpu_object.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index 346cef5ce251..0cd5ecf4b3c0 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -151,9 +151,9 @@ static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev,
return -EINVAL;
shmem->pages = drm_gem_shmem_get_pages_sgt(&bo->base.base);
- if (!shmem->pages) {
+ if (IS_ERR(shmem->pages)) {
drm_gem_shmem_unpin(&bo->base.base);
- return -EINVAL;
+ return PTR_ERR(shmem->pages);
}
if (use_dma_api) {
--
2.27.0
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2020-06-19 14:29 [PATCH] drm/virtio: Fix an IS_ERR() vs NULL check in virtio_gpu_object_shmem_init() Dan Carpenter
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