diff mbox series

[3/3] udmabuf: check that flags has no unsupported bits set

Message ID 20190822093654.23752-4-kraxel@redhat.com (mailing list archive)
State New, archived
Headers show
Series udmabuf: misc tweaks. | expand

Commit Message

Gerd Hoffmann Aug. 22, 2019, 9:36 a.m. UTC 
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reported-by: Yann Droneaud <ydroneaud@opteya.com>
---
 drivers/dma-buf/udmabuf.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 6c3ec8fcef01..ca1364102b18 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -131,6 +131,9 @@  static long udmabuf_create(const struct udmabuf_create_list *head,
 	int seals, ret = -EINVAL;
 	u32 i, flags;
 
+	if (head->flags & ~UDMABUF_FLAGS_CLOEXEC)
+		return -EINVAL;
+
 	ubuf = kzalloc(sizeof(*ubuf), GFP_KERNEL);
 	if (!ubuf)
 		return -ENOMEM;