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genirq: Remove unnecessary memset() calls

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sprintf() and snprintf() implementation of kernel guarantees that
its result is terminated with null byte if size is larger than 0. So we
don't need to call memset() at all.

Signed-off-by: Weongyo Jeong <weongyo.linux@gmail.com>
Link: http://lkml.kernel.org/r/1459451703-5744-1-git-send-email-weongyo.linux@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Weongyo Jeong 2016-03-31 12:15:03 -07:00 committed by Thomas Gleixner
parent fe3464ca87
commit ff5b706f51
1 changed files with 0 additions and 3 deletions
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3
kernel/irq/proc.c
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@ -311,7 +311,6 @@ void register_handler_proc(unsigned int irq, struct irqaction *action)
!name_unique(irq, action))
return;
memset(name, 0, MAX_NAMELEN);
snprintf(name, MAX_NAMELEN, "%s", action->name);
/* create /proc/irq/1234/handler/ */
@ -340,7 +339,6 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc)
if (desc->dir)
goto out_unlock;
memset(name, 0, MAX_NAMELEN);
sprintf(name, "%d", irq);
/* create /proc/irq/1234 */
@ -386,7 +384,6 @@ void unregister_irq_proc(unsigned int irq, struct irq_desc *desc)
#endif
remove_proc_entry("spurious", desc->dir);
memset(name, 0, MAX_NAMELEN);
sprintf(name, "%u", irq);
remove_proc_entry(name, root_irq_dir);
}