udmabuf: use ENOTTY for invalid ioctls

Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180911134216.9760-11-kraxel@redhat.com

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index e0465a9bf3f93949a33c646bb51b8b8c388ca512..5dd73bc511bafac2cea9dde7b8ad011a09a89faf 100644 (file)
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -260,7 +260,7 @@ static long udmabuf_ioctl(struct file *filp, unsigned int ioctl,
                ret = udmabuf_ioctl_create_list(filp, arg);
                break;
        default:
-               ret = -EINVAL;
+               ret = -ENOTTY;
                break;
        }
        return ret;