fuse: fix retrieve length

In some cases fuse_retrieve() would return a short byte count if offset was
non-zero.  The data returned was correct, though.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@vger.kernel.org

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 7df2b5e8fbe1..f4246cfc8d87 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1576,6 +1576,7 @@ static int fuse_retrieve(struct fuse_conn *fc, struct inode *inode,
                 req->pages[req->num_pages] = page;
                 req->num_pages++;
 
+                offset = 0;
                 num -= this_num;
                 total_len += this_num;
                 index++;