Also return -ENOMEM if such a failure happens, the implement should take
responsibility for the error handling.
Fixes: 3df64d7b0a4f ("drm/mediatek: Implement gem prime vmap/vunmap function")
Reviewed-by: Matthias Brugger <[email protected]>
Reviewed-by: Alexandre Mergnat <[email protected]>
Signed-off-by: Sui Jingfeng <[email protected]>
---
drivers/gpu/drm/mediatek/mtk_drm_gem.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
index a25b28d3ee90..9f364df52478 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
@@ -247,7 +247,11 @@ int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj,
struct iosys_map *map)
mtk_gem->kvaddr = vmap(mtk_gem->pages, npages, VM_MAP,
pgprot_writecombine(PAGE_KERNEL));
-
+ if (!mtk_gem->kvaddr) {
+ kfree(sgt);
+ kfree(mtk_gem->pages);
+ return -ENOMEM;
+ }
out:
kfree(sgt);
iosys_map_set_vaddr(map, mtk_gem->kvaddr);
--
2.34.1
