[PATCH] drm: tegra: fix memory leak in error handling path

[cgel . zte]

From: Lv Ruyi <lv.r...@zte.com.cn>

Before leave the nvdec_load_firmware, we shuold free virt which is alloced
by dma_alloc_coherent, so change "return err" to "goto cleanup".

Reported-by: Zeal Robot <zea...@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.r...@zte.com.cn>
---
 drivers/gpu/drm/tegra/nvdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tegra/nvdec.c b/drivers/gpu/drm/tegra/nvdec.c
index 79e1e88203cf..a14863346bfa 100644
--- a/drivers/gpu/drm/tegra/nvdec.c
+++ b/drivers/gpu/drm/tegra/nvdec.c
@@ -209,7 +209,7 @@ static int nvdec_load_firmware(struct nvdec *nvdec)
 
                err = dma_mapping_error(nvdec->dev, iova);
                if (err < 0)
-                       return err;
+                       goto cleanup;
        } else {
                virt = tegra_drm_alloc(tegra, size, &iova);
        }
-- 
2.25.1