Staging: most: fix snprintf() is printing too much

This patch prevents snprintf from exceeding a given buffer size.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c
index 98a4c900d1c2fa3b3611f96b5c30c8f8aa2707d0..49d03af599d55befe4ba2369dbeac5eefa852192 100644 (file)
--- a/drivers/staging/most/mostcore/core.c
+++ b/drivers/staging/most/mostcore/core.c
@@ -983,7 +983,7 @@ static ssize_t store_add_link(struct most_aim_obj *aim_obj,
                return ret;
 
        if (mdev_devnod == 0 || *mdev_devnod == 0) {
-               snprintf(devnod_buf, PAGE_SIZE, "%s-%s", mdev, mdev_ch);
+               snprintf(devnod_buf, sizeof(devnod_buf), "%s-%s", mdev, mdev_ch);
                mdev_devnod = devnod_buf;
        }