netdev - [PATCH net-next] xprtrdma: Fix error return code in rpcrdma_buffer

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Date:   Wed, 16 Jan 2019 10:38:44 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <anna.schumaker@...app.com>,
        "J. Bruce Fields" <bfields@...ldses.org>,
        "Jeff Layton" <jlayton@...nel.org>,
        Chuck Lever <chuck.lever@...cle.com>
CC:     Wei Yongjun <weiyongjun1@...wei.com>, <linux-nfs@...r.kernel.org>,
        <netdev@...r.kernel.org>, <kernel-janitors@...r.kernel.org>
Subject: [PATCH net-next] xprtrdma: Fix error return code in rpcrdma_buffer_create()

Fix to return a negative error code -ENOMEM from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 6d2d0ee27c7a ("xprtrdma: Replace rpcrdma_receive_wq with a per-xprt workqueue")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 net/sunrpc/xprtrdma/verbs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 7749a2b..3dde058 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1113,8 +1113,10 @@ struct rpcrdma_req *
 						WQ_MEM_RECLAIM | WQ_HIGHPRI,
 						0,
 			r_xprt->rx_xprt.address_strings[RPC_DISPLAY_ADDR]);
-	if (!buf->rb_completion_wq)
+	if (!buf->rb_completion_wq) {
+		rc = -ENOMEM;
 		goto out;
+	}
 
 	return 0;
 out: