lkml.org 
[lkml]   [2022]   [Jun]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2] drm/virtio: Fix NULL vs IS_ERR checking in virtio_gpu_object_shmem_init
Date
Since drm_prime_pages_to_sg() function return error pointers.
The drm_gem_shmem_get_sg_table() function returns error pointers too.
Using IS_ERR() to check the return value to fix this.

Fixes: 2f2aa13724d5 ("drm/virtio: move virtio_gpu_mem_entry initialization to new function")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
changes in v2:
- Update Fixes tag.
- rebase the working tree.
v1 Link: https://lore.kernel.org/all/20211222072649.18169-1-linmq006@gmail.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 f293e6ad52da..1cc8f3fc8e4b 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -168,9 +168,9 @@ static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev,
* since virtio_gpu doesn't support dma-buf import from other devices.
*/
shmem->pages = drm_gem_shmem_get_sg_table(&bo->base);
- if (!shmem->pages) {
+ if (IS_ERR(shmem->pages)) {
drm_gem_shmem_unpin(&bo->base);
- return -EINVAL;
+ return PTR_ERR(shmem->pages);
}

if (use_dma_api) {
--
2.25.1
\
 
 \ /
  Last update: 2022-06-02 12:43    [W:0.080 / U:0.744 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site