From f31559af97a0eabd467e4719253675b7dccb8a46 Mon Sep 17 00:00:00 2001 From: Dinghao Liu Date: Mon, 21 Dec 2020 20:24:35 +0800 Subject: 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: Dinghao Liu Link: https://lore.kernel.org/r/20201221122437.10274-1-dinghao.liu@zju.edu.cn Signed-off-by: Greg Kroah-Hartman --- drivers/staging/fwserial/fwserial.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/staging/fwserial') diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index db83d34cd677..c368082aae1a 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -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 @@ unregister_ttys: 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]); } -- cgit v1.2.3