Input: fix potential overflows in driver/input/touchscreen

Change all sprintfs into snprintfs to make sure we won't stomp on
data adjacent to our buffers.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

3 files changed, 3 insertions, 3 deletions

diff --git a/drivers/input/touchscreen/gunze.c b/drivers/input/touchscreen/gunze.c
index 466da190ceec..b769b21973b7 100644
--- a/drivers/input/touchscreen/gunze.c
+++ b/drivers/input/touchscreen/gunze.c
@@ -129,7 +129,7 @@ static int gunze_connect(struct serio *serio, struct serio_driver *drv)
 
         gunze->serio = serio;
         gunze->dev = input_dev;
-        sprintf(gunze->phys, "%s/input0", serio->phys);
+        snprintf(gunze->phys, sizeof(serio->phys), "%s/input0", serio->phys);
 
         input_dev->private = gunze;
         input_dev->name = "Gunze AHL-51S TouchScreen";
diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c
index a595d386312f..2de2139f2fed 100644
--- a/drivers/input/touchscreen/h3600_ts_input.c
+++ b/drivers/input/touchscreen/h3600_ts_input.c
@@ -363,7 +363,7 @@ static int h3600ts_connect(struct serio *serio, struct serio_driver *drv)
 
         ts->serio = serio;
         ts->dev = input_dev;
-        sprintf(ts->phys, "%s/input0", serio->phys);
+        snprintf(ts->phys, sizeof(ts->phys), "%s/input0", serio->phys);
 
         input_dev->name = "H3600 TouchScreen";
         input_dev->phys = ts->phys;
diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c
index 1d0d37eeef6e..8647a905df80 100644
--- a/drivers/input/touchscreen/mtouch.c
+++ b/drivers/input/touchscreen/mtouch.c
@@ -143,7 +143,7 @@ static int mtouch_connect(struct serio *serio, struct serio_driver *drv)
 
         mtouch->serio = serio;
         mtouch->dev = input_dev;
-        sprintf(mtouch->phys, "%s/input0", serio->phys);
+        snprintf(mtouch->phys, sizeof(mtouch->phys), "%s/input0", serio->phys);
 
         input_dev->private = mtouch;
         input_dev->name = "MicroTouch Serial TouchScreen";