diff options
| author | Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> | 2018-07-19 12:37:13 +0300 |
|---|---|---|
| committer | Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> | 2018-07-23 11:47:35 +0300 |
| commit | a31ac0b23cb8ae832d49162bd217b2727154889b (patch) | |
| tree | 59629abd3c28cd441818f94d70588eaa45acde8e /drivers/gpu/drm/xen | |
| parent | 106b6c39c870c1f7628ba41693e571f419b1981d (diff) | |
drm: Replace NULL with error value in drm_prime_pages_to_sg
Dan Carpenter has reported that there is the following static checker
warning:
drivers/gpu/drm/drm_prime.c:317 drm_gem_map_dma_buf()
warn: 'sgt' can also be NULL
314 sgt = obj->dev->driver->gem_prime_get_sg_table(obj);
315
316 if (!IS_ERR(sgt)) {
317 if (!dma_map_sg_attrs(attach->dev, sgt->sgl, sgt->nents, dir,
Problematic functions are xen_drm_front_gem_get_sg_table and
drm_gem_cma_prime_get_sg_table. Fix those by replacing NULL with error value.
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180719093713.3643-1-andr2000@gmail.com
Diffstat (limited to 'drivers/gpu/drm/xen')
| -rw-r--r-- | drivers/gpu/drm/xen/xen_drm_front_gem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xen/xen_drm_front_gem.c b/drivers/gpu/drm/xen/xen_drm_front_gem.c index c85bfe7571cb..47ff019d3aef 100644 --- a/drivers/gpu/drm/xen/xen_drm_front_gem.c +++ b/drivers/gpu/drm/xen/xen_drm_front_gem.c @@ -179,7 +179,7 @@ struct sg_table *xen_drm_front_gem_get_sg_table(struct drm_gem_object *gem_obj) struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj); if (!xen_obj->pages) - return NULL; + return ERR_PTR(-ENOMEM); return drm_prime_pages_to_sg(xen_obj->pages, xen_obj->num_pages); } |