plugins: Fix two resource leaks in setup_socket()

Either accept() fails or exits normally, we need to close the fd.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20201109082829.87496-3-alex.chen@huawei.com>
Message-Id: <20201110192316.26397-3-alex.bennee@linaro.org>
1 file changed