drm/prime: clarify logic a bit in drm_gem_prime_fd_to_handle

if (!ret) implies that ret == 0, so no need to clear it again. And
explicitly check for ret == 0 to indicate that we're checking an errno
integer.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index cb04516..3d57601 100644 (file)
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -444,10 +444,8 @@ int drm_gem_prime_fd_to_handle(struct drm_device *dev,
 
        ret = drm_prime_lookup_buf_handle(&file_priv->prime,
                        dma_buf, handle);
-       if (!ret) {
-               ret = 0;
+       if (ret == 0)
                goto out_put;
-       }
 
        /* never seen this one, need to import */
        obj = dev->driver->gem_prime_import(dev, dma_buf);