net: caif: fix double disconnect client in chnl_net_open()

stable inclusion
from stable-v5.10.156
commit 389738f5dbc51f36ce735ee327f6d143b735a95f
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7MCG1

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=389738f5dbc51f36ce735ee327f6d143b735a95f



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[ Upstream commit 8fbb53c8 ]

When connecting to client timeout, disconnect client for twice in
chnl_net_open(). Remove one. Compile tested only.

Fixes: 2aa40aef ("caif: Use link layer MTU instead of fixed MTU")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>