commit 52499d9cdd887843fa37bf8733047fded7e907cb
author Gerd Hoffmann <kraxel@redhat.com> Tue Sep 11 15:42:13 2018 +0200
committer Gerd Hoffmann <kraxel@redhat.com> Wed Sep 12 08:21:32 2018 +0200
tree 9f93fb9899bf60313f2c8ef3acbd30345a2b4ca3
parent 7a1c67d78094236e8ba0c5f6f83a8baf33a53860

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

drivers/dma-buf/udmabuf.c

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index e0465a9..5dd73bc 100644
--- 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;