提交 f31559af 编写于 作者: D Dinghao Liu 提交者: Greg Kroah-Hartman

staging: fwserial: Fix error handling in fwserial_create

When fw_core_add_address_handler() fails, we need to destroy
the port by tty_port_destroy(). Also we need to unregister
the address handler by fw_core_remove_address_handler() on
failure.
Signed-off-by: NDinghao Liu <dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/r/20201221122437.10274-1-dinghao.liu@zju.edu.cnSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
上级 ec36ae71
......@@ -2189,6 +2189,7 @@ static int fwserial_create(struct fw_unit *unit)
err = fw_core_add_address_handler(&port->rx_handler,
&fw_high_memory_region);
if (err) {
tty_port_destroy(&port->port);
kfree(port);
goto free_ports;
}
......@@ -2271,6 +2272,7 @@ static int fwserial_create(struct fw_unit *unit)
free_ports:
for (--i; i >= 0; --i) {
fw_core_remove_address_handler(&serial->ports[i]->rx_handler);
tty_port_destroy(&serial->ports[i]->port);
kfree(serial->ports[i]);
}
......
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