[PATCH 4.19 22/51] fuse: fallocate: fix return with locked inode

From: Greg Kroah-Hartman
Date: Sun Jun 09 2019 - 12:52:25 EST


From: Miklos Szeredi <mszeredi@xxxxxxxxxx>

commit 35d6fcbb7c3e296a52136347346a698a35af3fda upstream.

Do the proper cleanup in case the size check fails.

Tested with xfstests:generic/228

Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Fixes: 0cbade024ba5 ("fuse: honor RLIMIT_FSIZE in fuse_file_fallocate")
Cc: Liu Bo <bo.liu@xxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v3.5
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
fs/fuse/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2981,7 +2981,7 @@ static long fuse_file_fallocate(struct f
offset + length > i_size_read(inode)) {
err = inode_newsize_ok(inode, offset + length);
if (err)
- return err;
+ goto out;
}

if (!(mode & FALLOC_FL_KEEP_SIZE))