On Wed, May 05, 2021 at 11:19:15AM +0200, Jiri Slaby wrote: > Line disciplines expect a positive value or zero returned from > tty->ops->write_room (invoked by tty_write_room). So make this > assumption explicit by using unsigned int as a return value. Both of > tty->ops->write_room and tty_write_room. > > Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> > Cc: Richard Henderson <rth@xxxxxxxxxxx> > Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx> > Cc: Matt Turner <mattst88@xxxxxxxxx> > Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> > Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> > Cc: Helge Deller <deller@xxxxxx> > Cc: Jeff Dike <jdike@xxxxxxxxxxx> > Cc: Richard Weinberger <richard@xxxxxx> > Cc: Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx> > Cc: Chris Zankel <chris@xxxxxxxxxx> > Cc: Max Filippov <jcmvbkbc@xxxxxxxxx> > Cc: Arnd Bergmann <arnd@xxxxxxxx> > Cc: Samuel Iglesias Gonsalvez <siglesias@xxxxxxxxxx> > Cc: Jens Taprogge <jens.taprogge@xxxxxxxxxxxx> > Cc: Karsten Keil <isdn@xxxxxxxxxxxxxx> > Cc: Scott Branden <scott.branden@xxxxxxxxxxxx> > Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx> > Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> > Cc: Jakub Kicinski <kuba@xxxxxxxxxx> > Cc: Heiko Carstens <hca@xxxxxxxxxxxxx> > Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx> > Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx> > Cc: David Lin <dtwlin@xxxxxxxxx> > Cc: Johan Hovold <johan@xxxxxxxxxx> > Cc: Alex Elder <elder@xxxxxxxxxx> > Cc: Laurentiu Tudor <laurentiu.tudor@xxxxxxx> > Cc: Jiri Kosina <jikos@xxxxxxxxxx> > Cc: David Sterba <dsterba@xxxxxxxx> > Cc: Shawn Guo <shawnguo@xxxxxxxxxx> > Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > Cc: Oliver Neukum <oneukum@xxxxxxxx> > Cc: Felipe Balbi <balbi@xxxxxxxxxx> > Cc: Mathias Nyman <mathias.nyman@xxxxxxxxx> > Cc: Marcel Holtmann <marcel@xxxxxxxxxxxx> > Cc: Johan Hedberg <johan.hedberg@xxxxxxxxx> > Cc: Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx> > --- > drivers/tty/ipwireless/tty.c | 2 +- Acked-by: David Sterba <dsterba@xxxxxxxx>
