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xprtrdma: fix pointer derefs in error cases of rpcrdma_ep_create

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commit a9c10b5b3b67b3750a10c8b089b2e05f5e176e33 upstream.

If there are failures then we must not leave the non-NULL pointers with
the error value, otherwise `rpcrdma_ep_destroy` gets confused and tries
free them, resulting in an Oops.

Signed-off-by: Dan Aloni <dan.aloni@vastdata.com>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
[ Larry: backport to 5.4.y. Minor conflict resolved due to missing commit 93aa8e0a9de80
  xprtrdma: Merge struct rpcrdma_ia into struct rpcrdma_ep ]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Larry Bassel <larry.bassel@oracle.com>
This commit is contained in:
Dan Aloni 2022-01-25 22:06:46 +02:00 • committed by Greg Kroah-Hartman
commit 59892d18dd
1 changed files with 2 additions and 0 deletions
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2
net/sunrpc/xprtrdma/verbs.c
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@ -525,6 +525,7 @@ int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt)
IB_POLL_WORKQUEUE);
if (IS_ERR(sendcq)) {
rc = PTR_ERR(sendcq);
sendcq = NULL;
goto out1;
}
@ -533,6 +534,7 @@ int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt)
IB_POLL_WORKQUEUE);
if (IS_ERR(recvcq)) {
rc = PTR_ERR(recvcq);
recvcq = NULL;
goto out2;
}