caif: fix NULL pointer check
Reported-by: <rucsoftsec@gmail.com>
Resolves-bug: http://bugzilla.kernel.org/show_bug?44441
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index 8a3054b..5de74e7 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -325,6 +325,9 @@
sprintf(name, "cf%s", tty->name);
dev = alloc_netdev(sizeof(*ser), name, caifdev_setup);
+ if (!dev)
+ return -ENOMEM;
+
ser = netdev_priv(dev);
ser->tty = tty_kref_get(tty);
ser->dev = dev;