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Subject[PATCH 3.16 050/148] ext2: check err when partial != NULL
3.16.82-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Chengguang Xu <cgxu519@mykernel.net>

commit e705f4b8aa27a59f8933e8f384e9752f052c469c upstream.

Check err when partial == NULL is meaningless because
partial == NULL means getting branch successfully without
error.

Link: https://lore.kernel.org/r/20191105045100.7104-1-cgxu519@mykernel.net
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Signed-off-by: Jan Kara <jack@suse.cz>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/ext2/inode.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -696,11 +696,14 @@ static int ext2_get_blocks(struct inode
if (!partial) {
count++;
mutex_unlock(&ei->truncate_mutex);
- if (err)
- goto cleanup;
clear_buffer_new(bh_result);
goto got_it;
}
+
+ if (err) {
+ mutex_unlock(&ei->truncate_mutex);
+ goto cleanup;
+ }
}

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