net: fec: fix the potential memory leak in fec_enet_init()

stable inclusion
from stable-v4.19.193
commit 15102886bc8f5f29daaadf2d925591d564c17e9f
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9BGVY
CVE: CVE-2021-47150

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=15102886bc8f5f29daaadf2d925591d564c17e9f



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[ Upstream commit 619fee9e ]

If the memory allocated for cbd_base is failed, it should
free the memory allocated for the queues, otherwise it causes
memory leak.

And if the memory allocated for the queues is failed, it can
return error directly.

Fixes: 59d0f746 ("net: fec: init multi queue date structure")
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Zhang Zekun <zhangzekun11@huawei.com>