Add missing semaphore release.

diff --git a/linux-core/drm_bufs.c b/linux-core/drm_bufs.c
index 9be1859..eb478ba 100644 (file)
--- a/linux-core/drm_bufs.c
+++ b/linux-core/drm_bufs.c
@@ -484,8 +484,10 @@ int drm_rmmap_ioctl(struct inode *inode, struct file *filp,
                return -EINVAL;
        }
 
-       if (!map)
+       if (!map) {
+               up(&dev->struct_sem);
                return -EINVAL;
+       }
 
        /* Register and framebuffer maps are permanent */
        if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) {