[PATCH 1/2] drm/tegra: Return an error code if fails

[Sui Jingfeng]

Return -ENOMEM if tegra_bo_mmap() fails.

Signed-off-by: Sui Jingfeng <suijingfeng at loongson.cn>
---
 drivers/gpu/drm/tegra/gem.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index dea38892d6e6..0ce22935fbd3 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -710,6 +710,8 @@ static int tegra_gem_prime_vmap(struct dma_buf *buf, struct iosys_map *map)
 	void *vaddr;
 
 	vaddr = tegra_bo_mmap(&bo->base);
+	if (!vaddr)
+		return -ENOMEM;
 	if (IS_ERR(vaddr))
 		return PTR_ERR(vaddr);
 
-- 
2.25.1