[PATCH] svcrdma: Unregister the device if svc_rdma_accept() fails

[cel@kernel.org]

From: Chuck Lever <chuck.lever@oracle.com>

To handle device removal, svc_rdma_accept() registers an interest in
the underlying device when accepting a connection. However
svc_rdma_free() is not invoked if svc_rdma_accept() fails. There
needs to be a matching "unregister" in that case; otherwise the
device cannot be removed.

Fixes: c4de97f7c454 ("svcrdma: Handle device removal outside of the CM event handler")
X-Cc: stable@vger.kernel.org
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 net/sunrpc/xprtrdma/svc_rdma_transport.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index aca8bdf65d72..5940a56023d1 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -575,6 +575,7 @@ static struct svc_xprt *svc_rdma_accept(struct svc_xprt *xprt)
 	if (newxprt->sc_qp && !IS_ERR(newxprt->sc_qp))
 		ib_destroy_qp(newxprt->sc_qp);
 	rdma_destroy_id(newxprt->sc_cm_id);
+	rpcrdma_rn_unregister(dev, &newxprt->sc_rn);
 	/* This call to put will destroy the transport */
 	svc_xprt_put(&newxprt->sc_xprt);
 	return NULL;
-- 
2.49.0