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exportfs: fix 'passing zero to ERR_PTR()' warning 

[ Upstream commit 909e22e053 ]

Fix a static code checker warning:
  fs/exportfs/expfs.c:171 reconnect_one() warn: passing zero to 'ERR_PTR'

The error path for lookup_one_len_unlocked failure
should set err to PTR_ERR.

Fixes: bbf7a8a356 ("exportfs: move most of reconnect_path to helper function")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
YueHaibing 2018-11-19 11:32:41 +08:00 committed by Greg Kroah-Hartman
parent fa3302ef72
commit 296f9d916c
1 changed files with 1 additions and 0 deletions
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fs/exportfs/expfs.c
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@ -147,6 +147,7 @@ static struct dentry *reconnect_one(struct vfsmount *mnt,
tmp = lookup_one_len_unlocked(nbuf, parent, strlen(nbuf));
if (IS_ERR(tmp)) {
dprintk("%s: lookup failed: %d\n", __func__, PTR_ERR(tmp));
err = PTR_ERR(tmp);
goto out_err;
}
if (tmp != dentry) {