diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index d6808f678db541388e1e808085d4ec022e6acd43..9f955f2010c25770f53110a2ff92ba98d0caadf4 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -794,6 +794,7 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops =  {
 
 /**
  * drm_prime_pages_to_sg - converts a page array into an sg list
+ * @dev: DRM device
  * @pages: pointer to the array of page pointers to convert
  * @nr_pages: length of the page vector
  *