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authorChuck Lever <chuck.lever@oracle.com>2015-01-21 11:03:19 -0500
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2015-01-30 10:47:48 -0500
commit5ae711a24601257f395c1f8746ac95be0cbd75e5 (patch)
treeb1e3c4d6d07f1c175247e66a20278ad831af8813 /net/sunrpc
parentafadc468eb309b7c48ffdc8fa4c72acbb9991613 (diff)
downloadop-kernel-dev-5ae711a24601257f395c1f8746ac95be0cbd75e5.zip
op-kernel-dev-5ae711a24601257f395c1f8746ac95be0cbd75e5.tar.gz
xprtrdma: Free the pd if ib_query_qp() fails
If ib_query_qp() fails or the memory registration mode isn't supported, don't leak the PD. An orphaned IB/core resource will cause IB module removal to hang. Fixes: bd7ed1d13304 ("RPC/RDMA: check selected memory registration ...") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/xprtrdma/verbs.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index c61bb61..aa012a3 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -614,7 +614,7 @@ rpcrdma_ia_open(struct rpcrdma_xprt *xprt, struct sockaddr *addr, int memreg)
if (rc) {
dprintk("RPC: %s: ib_query_device failed %d\n",
__func__, rc);
- goto out2;
+ goto out3;
}
if (devattr.device_cap_flags & IB_DEVICE_LOCAL_DMA_LKEY) {
@@ -672,14 +672,14 @@ rpcrdma_ia_open(struct rpcrdma_xprt *xprt, struct sockaddr *addr, int memreg)
"phys register failed with %lX\n",
__func__, PTR_ERR(ia->ri_bind_mem));
rc = -ENOMEM;
- goto out2;
+ goto out3;
}
break;
default:
printk(KERN_ERR "RPC: Unsupported memory "
"registration mode: %d\n", memreg);
rc = -ENOMEM;
- goto out2;
+ goto out3;
}
dprintk("RPC: %s: memory registration strategy is %d\n",
__func__, memreg);
@@ -689,6 +689,10 @@ rpcrdma_ia_open(struct rpcrdma_xprt *xprt, struct sockaddr *addr, int memreg)
rwlock_init(&ia->ri_qplock);
return 0;
+
+out3:
+ ib_dealloc_pd(ia->ri_pd);
+ ia->ri_pd = NULL;
out2:
rdma_destroy_id(ia->ri_id);
ia->ri_id = NULL;
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