RDMA/qedr: clean up work queue on failure in qedr_alloc_resources()

stable inclusion
from stable-v5.10.154
commit 4e1e4485b2520983b1cc47b3af278e9f4b9734a5
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I64YCB

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4e1e4485b2520983b1cc47b3af278e9f4b9734a5



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[ Upstream commit 7a47e077 ]

Add a check for if create_singlethread_workqueue() fails and also destroy
the work queue on failure paths.

Fixes: e411e058 ("RDMA/qedr: Add iWARP connection management functions")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/Y1gBkDucQhhWj5YM@kili


Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Lipeng Sang <sanglipeng1@jd.com>
(cherry picked from commit 7cb57c6b)