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authorJiri Slaby <jslaby@suse.cz>2021-05-05 11:19:16 +0200
committerJohan Hovold <johan@kernel.org>2021-05-19 10:56:40 +0200
commit94cc7aeaf6c0cff0b8aeb7cb3579cee46b923560 (patch)
tree480c01d00d7ff2fd9bd25f7becd79625a8bd771b /drivers/usb/serial/opticon.c
parentd07f6ca923ea0927a1024dfccafc5b53b61cfecc (diff)
downloadlinux-94cc7aeaf6c0cff0b8aeb7cb3579cee46b923560.tar.bz2
USB: serial: make usb_serial_driver::write_room return uint
Line disciplines expect a positive value or zero returned from tty->ops->write_room (invoked by tty_write_room). Both of them are being updated to return an unsigned int. Switch also usb_serial_driver::write_room and all its users. Signed-off-by: Jiri Slaby <jslaby@suse.cz> [ johan: amend commit message, drop unrelated comment change ] Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial/opticon.c')
-rw-r--r--drivers/usb/serial/opticon.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 40c713fae0c3..37b51947bd0b 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -267,7 +267,7 @@ error_no_buffer:
return ret;
}
-static int opticon_write_room(struct tty_struct *tty)
+static unsigned int opticon_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct opticon_private *priv = usb_get_serial_port_data(port);