linux-kernel - [PATCH] power: use kasprintf

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Message-ID: <20071117105558.GA4861@APFDCB5C>
Date:	Sat, 17 Nov 2007 19:55:58 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Anton Vorontsov <cbou@...l.ru>,
	David Woodhouse <dwmw2@...radead.org>
Subject: [PATCH] power: use kasprintf

Use kasprintf instead of kmalloc()-strcpy()-strcat().

Cc: Anton Vorontsov <cbou@...l.ru>
Cc: David Woodhouse <dwmw2@...radead.org>
Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>

---
 drivers/power/power_supply_leds.c |   25 +++++++------------------
 1 file changed, 7 insertions(+), 18 deletions(-)

Index: 2.6-mm/drivers/power/power_supply_leds.c
===================================================================
--- 2.6-mm.orig/drivers/power/power_supply_leds.c
+++ 2.6-mm/drivers/power/power_supply_leds.c
@@ -10,6 +10,7 @@
  *  You may use this code as per GPL version 2
  */
 
+#include <linux/kernel.h>
 #include <linux/power_supply.h>
 
 #include "power_supply.h"
@@ -48,28 +49,20 @@ static int power_supply_create_bat_trigg
 {
 	int rc = 0;
 
-	psy->charging_full_trig_name = kmalloc(strlen(psy->name) +
-				  sizeof("-charging-or-full"), GFP_KERNEL);
+	psy->charging_full_trig_name = kasprintf(GFP_KERNEL,
+					"%s-charging-or-full", psy->name);
 	if (!psy->charging_full_trig_name)
 		goto charging_full_failed;
 
-	psy->charging_trig_name = kmalloc(strlen(psy->name) +
-					  sizeof("-charging"), GFP_KERNEL);
+	psy->charging_trig_name = kasprintf(GFP_KERNEL,
+					"%s-charging", psy->name);
 	if (!psy->charging_trig_name)
 		goto charging_failed;
 
-	psy->full_trig_name = kmalloc(strlen(psy->name) +
-				      sizeof("-full"), GFP_KERNEL);
+	psy->full_trig_name = kasprintf(GFP_KERNEL, "%s-full", psy->name);
 	if (!psy->full_trig_name)
 		goto full_failed;
 
-	strcpy(psy->charging_full_trig_name, psy->name);
-	strcat(psy->charging_full_trig_name, "-charging-or-full");
-	strcpy(psy->charging_trig_name, psy->name);
-	strcat(psy->charging_trig_name, "-charging");
-	strcpy(psy->full_trig_name, psy->name);
-	strcat(psy->full_trig_name, "-full");
-
 	led_trigger_register_simple(psy->charging_full_trig_name,
 				    &psy->charging_full_trig);
 	led_trigger_register_simple(psy->charging_trig_name,
@@ -120,14 +113,10 @@ static int power_supply_create_gen_trigg
 {
 	int rc = 0;
 
-	psy->online_trig_name = kmalloc(strlen(psy->name) + sizeof("-online"),
-					GFP_KERNEL);
+	psy->online_trig_name = kasprintf(GFP_KERNEL, "%s-online", psy->name);
 	if (!psy->online_trig_name)
 		goto online_failed;
 
-	strcpy(psy->online_trig_name, psy->name);
-	strcat(psy->online_trig_name, "-online");
-
 	led_trigger_register_simple(psy->online_trig_name, &psy->online_trig);
 
 	goto success;
-
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