[PATCH 1/1] ovl: Put upperdentry if ovl_check_origin() fails

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If ovl_check_origin() fails, we should put upperdentry. We have a reference
on it by now. So goto out_put_upper instead of out.

Fixes: a9d019573e88 ("ovl: lookup non-dir copy-up-origin by file handle")
Cc: <stable@xxxxxxxxxxxxxxx> #4.12
Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
---
 fs/overlayfs/namei.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index a12dc10bf726..bc6d5c5a3443 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -630,7 +630,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 			err = ovl_check_origin(upperdentry, roe->lowerstack,
 					       roe->numlower, &stack, &ctr);
 			if (err)
-				goto out;
+				goto out_put_upper;
 		}
 
 		if (d.redirect) {
-- 
2.13.6

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