1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c b/drivers/gpu/drm/udl/udl_dmabuf.c
index 2867ed155ff6..0a20695eb120 100644
--- a/drivers/gpu/drm/udl/udl_dmabuf.c
+++ b/drivers/gpu/drm/udl/udl_dmabuf.c
@@ -76,6 +76,7 @@ static struct sg_table *udl_map_dma_buf(struct dma_buf_attachment *attach,
         struct udl_drm_dmabuf_attachment *udl_attach = attach->priv;
         struct udl_gem_object *obj = to_udl_bo(attach->dmabuf->priv);
         struct drm_device *dev = obj->base.dev;
+        struct udl_device *udl = dev->dev_private;
         struct scatterlist *rd, *wr;
         struct sg_table *sgt = NULL;
         unsigned int i;
@@ -112,7 +113,7 @@ static struct sg_table *udl_map_dma_buf(struct dma_buf_attachment *attach,
                 return ERR_PTR(-ENOMEM);
         }
 
-        mutex_lock(&dev->struct_mutex);
+        mutex_lock(&udl->gem_lock);
 
         rd = obj->sg->sgl;
         wr = sgt->sgl;
@@ -137,7 +138,7 @@ static struct sg_table *udl_map_dma_buf(struct dma_buf_attachment *attach,
         attach->priv = udl_attach;
 
 err_unlock:
-        mutex_unlock(&dev->struct_mutex);
+        mutex_unlock(&udl->gem_lock);
         return sgt;
 }