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Commit ff5b706f authored by Weongyo Jeong's avatar Weongyo Jeong Committed by Thomas Gleixner
Browse files

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: default avatarWeongyo Jeong <weongyo.linux@gmail.com>
Link: http://lkml.kernel.org/r/1459451703-5744-1-git-send-email-weongyo.linux@gmail.com


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent fe3464ca

kernel/irq/proc.c

+0 −3
Original line number Diff line number Diff line
@@ -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);

}