[PATCH] udmabuf: set read/write flag when exporting

[Gerd Hoffmann]

Otherwise, mmap fails when done with PROT_WRITE.

Suggested-by: Gurchetan Singh <gurchetansingh at chromium.org>
Signed-off-by: Gerd Hoffmann <kraxel at redhat.com>
---
 drivers/dma-buf/udmabuf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index e70328ab7e..d9ff246093 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -189,6 +189,7 @@ static long udmabuf_create(const struct udmabuf_create_list *head,
 	exp_info.ops  = &udmabuf_ops;
 	exp_info.size = ubuf->pagecount << PAGE_SHIFT;
 	exp_info.priv = ubuf;
+	exp_info.flags = O_RDWR;
 
 	buf = dma_buf_export(&exp_info);
 	if (IS_ERR(buf)) {
-- 
2.9.3