ceph: fix dentry leak in splice_dentry()

In any case, d_splice_alias() does not drop reference of original
dentry.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index ee764ac352ab..a866be999216 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1135,6 +1135,7 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in)
         if (IS_ERR(realdn)) {
                 pr_err("splice_dentry error %ld %p inode %p ino %llx.%llx\n",
                        PTR_ERR(realdn), dn, in, ceph_vinop(in));
+                dput(dn);
                 dn = realdn; /* note realdn contains the error */
                 goto out;
         } else if (realdn) {