Commit f6f19595 authored by Jiri Slaby's avatar Jiri Slaby Committed by Greg Kroah-Hartman
Browse files

tty: return void from tty_unregister_ldisc 



Now that noone checks the return value of tty_unregister_ldisc, make the
function return 'void'.

Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210505091928.22010-20-jslaby@suse.cz


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 357a6a87

drivers/tty/tty_ldisc.c

+1 −3
Original line number Diff line number Diff line
@@ -86,15 +86,13 @@ EXPORT_SYMBOL(tty_register_ldisc); 
 *		takes tty_ldiscs_lock to guard against ldisc races

 */



int tty_unregister_ldisc(struct tty_ldisc_ops *ldisc)

void tty_unregister_ldisc(struct tty_ldisc_ops *ldisc)

{

	unsigned long flags;



	raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);

	tty_ldiscs[ldisc->num] = NULL;

	raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);



	return 0;

}

EXPORT_SYMBOL(tty_unregister_ldisc);

include/linux/tty.h

+1 −1
Original line number Diff line number Diff line
@@ -637,7 +637,7 @@ static inline int tty_port_users(struct tty_port *port) 
}



extern int tty_register_ldisc(struct tty_ldisc_ops *new_ldisc);

extern int tty_unregister_ldisc(struct tty_ldisc_ops *ldisc);

extern void tty_unregister_ldisc(struct tty_ldisc_ops *ldisc);

extern int tty_set_ldisc(struct tty_struct *tty, int disc);

extern int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,

				 const char *f, int count);