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svcrdma: Unregister the device if svc_rdma_accept() fails

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commit 8ac6fcae5dc0e801f1c82a83f5ae2c0a4db19932 upstream.

To handle device removal, svc_rdma_accept() requests removal
notification for 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: c4de97f7c4 ("svcrdma: Handle device removal outside of the CM event handler")
Cc: stable@vger.kernel.org
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chuck Lever
2025-04-27 12:39:59 -04:00
committed by Greg Kroah-Hartman
parent f78b38af35
commit cb3cba0ec3
1 changed files with 1 additions and 0 deletions
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1
net/sunrpc/xprtrdma/svc_rdma_transport.c
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@@ -577,6 +577,7 @@ 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;