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authorWeongyo Jeong <weongyo.linux@gmail.com>2016-03-31 12:15:03 -0700
committerThomas Gleixner <tglx@linutronix.de>2016-06-10 17:07:50 +0200
commitff5b706f5189fe8d2a6fd576b491b769ec1d29d3 (patch)
treeb7361198a3786138d9eeab3bd25a80b5f77b2c17 /kernel/irq/proc.c
parentfe3464ca8710012a247bb4586dde21b080f88514 (diff)
downloadlinux-stericsson-ff5b706f5189fe8d2a6fd576b491b769ec1d29d3.tar.gz
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>
Diffstat (limited to 'kernel/irq/proc.c')
-rw-r--r--kernel/irq/proc.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 50a8f28be247..f30425dce9dd 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -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);
}