Messages in this thread Patch in this message | | | From | Gerd Hoffmann <> | Subject | [PATCH] udmabuf: set read/write flag when exporting | Date | Wed, 14 Nov 2018 13:20:29 +0100 |
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Otherwise, mmap fails when done with PROT_WRITE.
Suggested-by: Gurchetan Singh <gurchetansingh@chromium.org> Signed-off-by: Gerd Hoffmann <kraxel@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
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