[PATCH] udmabuf: set read/write flag when exporting
Gurchetan Singh
gurchetansingh at chromium.org
Tue Oct 30 01:32:37 UTC 2018
Otherwise, mmap fails when done with PROT_WRITE.
---
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 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)) {
--
2.16.4
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