diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2018-11-14 15:20:29 +0300 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2018-11-16 10:50:53 +0300 |
| commit | 5c074eeabbd332b11559f7fc1e89d456f94801fb (patch) | |
| tree | dcd9cb8d2ca28efa019a418594150aea703f6c20 /drivers | |
| parent | fcc86cb45d38ca2f24bcea9c29c7f4742041caed (diff) | |
| download | linux-5c074eeabbd332b11559f7fc1e89d456f94801fb.tar.xz | |
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
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma-buf/udmabuf.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c index 5b44ef226904..fc359ca4503d 100644 --- a/drivers/dma-buf/udmabuf.c +++ b/drivers/dma-buf/udmabuf.c @@ -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)) { |