mainline inclusion
from mainline-v5.4-rc2
commit 67b483dd
category: bugfix
bugzilla: NA
CVE: NA
Link: https://gitee.com/openeuler/kernel/issues/I1WGZE

-------------------------------------------------

If the connect times out, we may have already destroyed the
queue in the timeout handler, so test if the queue is still
allocated in the connect error handler.
Reported-by: NYi Zhang <yi.zhang@redhat.com>
Signed-off-by: NSagi Grimberg <sagi@grimberg.me>
Reviewed-by: NChao Leng <lengchao@huawei.com>
Reviewed-by: NJike Cheng <chengjike.cheng@huawei.com>
Signed-off-by: NRuozhu Li <liruozhu@huawei.com>
Signed-off-by: NLijie <lijie34@huawei.com>
Reviewed-by: NTao Hou <houtao1@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>