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tty: return void from tty_unregister_ldisc

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

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210505091928.22010-20-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2021-05-05 11:19:12 +02:00 committed by Greg Kroah-Hartman
parent 357a6a875f
commit f6f19595a7
2 changed files with 2 additions and 4 deletions
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4
drivers/tty/tty_ldisc.c
View File

@ -86,15 +86,13 @@ EXPORT_SYMBOL(tty_register_ldisc);
* takes tty_ldiscs_lock to guard against ldisc races * 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; unsigned long flags;
raw_spin_lock_irqsave(&tty_ldiscs_lock, flags); raw_spin_lock_irqsave(&tty_ldiscs_lock, flags);
tty_ldiscs[ldisc->num] = NULL; tty_ldiscs[ldisc->num] = NULL;
raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags); raw_spin_unlock_irqrestore(&tty_ldiscs_lock, flags);
return 0;
} }
EXPORT_SYMBOL(tty_unregister_ldisc); EXPORT_SYMBOL(tty_unregister_ldisc);

2
include/linux/tty.h
View File

@ -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_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_set_ldisc(struct tty_struct *tty, int disc);
extern int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p, extern int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,
const char *f, int count); const char *f, int count);