drivers: serial: jsm: fix some leaks in probe

stable inclusion
from stable-v5.10.150
commit 71ffe5111f0ffa2fd43c14fd176c6f05d4e82212
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0XA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=71ffe5111f0ffa2fd43c14fd176c6f05d4e82212



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[ Upstream commit 1d5859ef ]

This error path needs to unwind instead of just returning directly.

Fixes: 03a8482c ("drivers: serial: jsm: Enable support for Digi Classic adapters")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YyxFh1+lOeZ9WfKO@kili


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>