[BATTERY] power_supply_leds: use kasprintf

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

Cc: Anton Vorontsov <[e-mail]>
Cc: David Woodhouse <[e-mail]>
Signed-off-by: Akinobu Mita <[e-mail]>
Signed-off-by: Anton Vorontsov <[e-mail]>

drivers/power/power_supply_leds.c

···
  *  You may use this code as per GPL version 2
  */
 
+#include <linux/kernel.h>
 #include <linux/power_supply.h>
 
 #include "power_supply.h"
···
 {
 	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);
···
 {
 	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);