linux-kernel - [PATCH 5.7 257/265] sunrpc: fixed rollback in rpc_gssd_dummy

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Message-Id: <20200629151818.2493727-258-sashal@kernel.org>
Date:   Mon, 29 Jun 2020 11:18:10 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Vasily Averin <vvs@...tuozzo.com>,
        Jeff Layton <jlayton@...hat.com>,
        Anna Schumaker <Anna.Schumaker@...app.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 5.7 257/265] sunrpc: fixed rollback in rpc_gssd_dummy_populate()

From: Vasily Averin <vvs@...tuozzo.com>

commit b7ade38165ca0001c5a3bd5314a314abbbfbb1b7 upstream.

__rpc_depopulate(gssd_dentry) was lost on error path

cc: stable@...r.kernel.org
Fixes: commit 4b9a445e3eeb ("sunrpc: create a new dummy pipe for gssd to hold open")
Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
Reviewed-by: Jeff Layton <jlayton@...hat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@...app.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/sunrpc/rpc_pipe.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 39e14d5edaf13..e9d0953522f09 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -1317,6 +1317,7 @@ rpc_gssd_dummy_populate(struct dentry *root, struct rpc_pipe *pipe_data)
 	q.len = strlen(gssd_dummy_clnt_dir[0].name);
 	clnt_dentry = d_hash_and_lookup(gssd_dentry, &q);
 	if (!clnt_dentry) {
+		__rpc_depopulate(gssd_dentry, gssd_dummy_clnt_dir, 0, 1);
 		pipe_dentry = ERR_PTR(-ENOENT);
 		goto out;
 	}
-- 
2.25.1