diff options
| author | Johan Hovold <johan@kernel.org> | 2023-06-04 14:35:03 +0200 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2023-06-07 17:00:23 +0200 |
| commit | 6ff58ae17fd9523246a260434133ed9ab7f56df2 (patch) | |
| tree | 286bf3fdeec1bef50a64f4597deef90c55f1c82f /drivers/usb/serial/ti_usb_3410_5052.c | |
| parent | 9561de3a55bed6bdd44a12820ba81ec416e705a7 (diff) | |
| download | linux-6ff58ae17fd9523246a260434133ed9ab7f56df2.tar.gz | |
USB: serial: return errors from break handling
Start propagating errors to user space when setting the break state
fails.
This will be used by follow-on changes to also report when a driver or
device does not support break control.
Tested-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial/ti_usb_3410_5052.c')
| -rw-r--r-- | drivers/usb/serial/ti_usb_3410_5052.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index b99f78224846d5..0fba25abf671ca 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -319,7 +319,7 @@ static void ti_set_termios(struct tty_struct *tty, static int ti_tiocmget(struct tty_struct *tty); static int ti_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); -static void ti_break(struct tty_struct *tty, int break_state); +static int ti_break(struct tty_struct *tty, int break_state); static void ti_interrupt_callback(struct urb *urb); static void ti_bulk_in_callback(struct urb *urb); static void ti_bulk_out_callback(struct urb *urb); @@ -1071,7 +1071,7 @@ static int ti_tiocmset(struct tty_struct *tty, } -static void ti_break(struct tty_struct *tty, int break_state) +static int ti_break(struct tty_struct *tty, int break_state) { struct usb_serial_port *port = tty->driver_data; struct ti_port *tport = usb_get_serial_port_data(port); @@ -1083,8 +1083,12 @@ static void ti_break(struct tty_struct *tty, int break_state) tport->tp_uart_base_addr + TI_UART_OFFSET_LCR, TI_LCR_BREAK, break_state == -1 ? TI_LCR_BREAK : 0); - if (status) + if (status) { dev_dbg(&port->dev, "%s - error setting break, %d\n", __func__, status); + return status; + } + + return 0; } static int ti_get_port_from_code(unsigned char code) |