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genirq: Remove unnecessary memset() calls 

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);
}