Commit 5c074eea authored Nov 14, 2018 by Gerd Hoffmann

udmabuf: set read/write flag when exporting



Otherwise, mmap fails when done with PROT_WRITE.

Suggested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20181114122029.16766-1-kraxel@redhat.com

parent fcc86cb4

drivers/dma-buf/udmabuf.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -184,6 +184,7 @@ 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)) {

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