[PATCH 1/2] sh: push-switch: use sysfs_emit() in switch_show

[Thorsten Blum]

Replace sprintf() with sysfs_emit() in switch_show(). sysfs_emit() is
preferred for formatting sysfs output because it provides safer bounds
checking.

Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx>
---
 arch/sh/drivers/push-switch.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/sh/drivers/push-switch.c b/arch/sh/drivers/push-switch.c
index a39e2edd4dcb..9a60e2e088a8 100644
--- a/arch/sh/drivers/push-switch.c
+++ b/arch/sh/drivers/push-switch.c
@@ -9,6 +9,7 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
+#include <linux/sysfs.h>
 #include <asm/push-switch.h>
 
 #define DRV_NAME "push-switch"
@@ -19,7 +20,7 @@ static ssize_t switch_show(struct device *dev,
 			   char *buf)
 {
 	struct push_switch_platform_info *psw_info = dev->platform_data;
-	return sprintf(buf, "%s\n", psw_info->name);
+	return sysfs_emit(buf, "%s\n", psw_info->name);
 }
 static DEVICE_ATTR_RO(switch);