X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fnet%2Fcaif%2Fcaif_serial.c;h=88a6a5810ec6820a1e8f2b674021a4a142804885;hb=cab6ce9ebe89303bbf5eff442776188070a22771;hp=34dea95d58dbf3fd06e0a83e4965b77e63bd3946;hpb=f66d95d69db3a329354bf29ebe5fc73862d2c60a;p=karo-tx-linux.git

diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index 34dea95d58db..88a6a5810ec6 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -347,7 +347,9 @@ static int ldisc_open(struct tty_struct *tty)
 	/* release devices to avoid name collision */
 	ser_release(NULL);
 
-	sprintf(name, "cf%s", tty->name);
+	result = snprintf(name, sizeof(name), "cf%s", tty->name);
+	if (result >= IFNAMSIZ)
+		return -EINVAL;
 	dev = alloc_netdev(sizeof(*ser), name, caifdev_setup);
 	if (!dev)
 		return -ENOMEM;