drm/tegra: Add error check for NVDEC firmware memory allocation

The return value for tegra_drm_alloc was missing an error check.
Add one.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230413082202.114721-1-cyndis@kapsi.fi

diff --git a/drivers/gpu/drm/tegra/nvdec.c b/drivers/gpu/drm/tegra/nvdec.c
index f821e36..9f57968 100644 (file)
--- a/drivers/gpu/drm/tegra/nvdec.c
+++ b/drivers/gpu/drm/tegra/nvdec.c
@@ -274,6 +274,8 @@ static int nvdec_load_falcon_firmware(struct nvdec *nvdec)
                        return err;
        } else {
                virt = tegra_drm_alloc(tegra, size, &iova);
+               if (IS_ERR(virt))
+                       return PTR_ERR(virt);
        }
 
        nvdec->falcon.firmware.virt = virt;