Input: fix potential overflows in driver/input/joystick

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>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/input/joystick/grip.c b/drivers/input/joystick/grip.c
index 20cb98ac2d79..17a90c436de8 100644
--- a/drivers/input/joystick/grip.c
+++ b/drivers/input/joystick/grip.c
@@ -354,7 +354,8 @@ static int grip_connect(struct gameport *gameport, struct gameport_driver *drv)
                         goto fail3;
                 }
 
-                sprintf(grip->phys[i], "%s/input%d", gameport->phys, i);
+                snprintf(grip->phys[i], sizeof(grip->phys[i]),
+                         "%s/input%d", gameport->phys, i);
 
                 input_dev->name = grip_name[grip->mode[i]];
                 input_dev->phys = grip->phys[i];