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List:       fuse-devel
Subject:    [fuse-devel] [PATCH] fuse: Fix return value from fuse_get_user_pages()
From:       Ashish Samant <ashish.samant () oracle ! com>
Date:       2016-03-25 17:53:41
Message-ID: 1458928421-26936-1-git-send-email-ashish.samant () oracle ! com
[Download RAW message or body]

fuse_get_user_pages() should return error or 0. Otherwise fuse_direct_io
read will not return 0 to indicate that read has completed.

Fixes: 742f992708dff0ada8b426228900ffb009c7167b

Signed-off-by: Ashish Samant <ashish.samant@oracle.com>
---
 fs/fuse/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 9dde38f..bbdaa46 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1295,7 +1295,7 @@ static int fuse_get_user_pages(struct fuse_req *req, struct iov_iter *ii,
 
 	*nbytesp = nbytes;
 
-	return ret;
+	return ret < 0 ? ret : 0;
 }
 
 static inline int fuse_iter_npages(const struct iov_iter *ii_p)
-- 
1.9.1


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