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/db9.c b/drivers/input/joystick/db9.c
index e61894685cb1..6f31f054d1bb 100644
--- a/drivers/input/joystick/db9.c
+++ b/drivers/input/joystick/db9.c
@@ -620,7 +620,8 @@ static struct db9 __init *db9_probe(int parport, int mode)
                         goto err_unreg_devs;
                 }
 
-                sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i);
+                snprintf(db9->phys[i], sizeof(db9->phys[i]),
+                         "%s/input%d", db9->pd->port->name, i);
 
                 input_dev->name = db9_mode->name;
                 input_dev->phys = db9->phys[i];