netdev - [PATCH] caif: fix NULL pointer check

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Message-ID: <20120724124207.4444.49789.stgit@localhost.localdomain>
Date:	Tue, 24 Jul 2012 13:42:14 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	sjur.brandeland@...ricsson.com, netdev@...r.kernel.org
Subject: [PATCH] caif: fix NULL pointer check

From: Alan Cox <alan@...ux.intel.com>

Reported-by: <rucsoftsec@...il.com>
Resolves-bug: http://bugzilla.kernel.org/show_bug?44441
Signed-off-by: Alan Cox <alan@...ux.intel.com>
---

 drivers/net/caif/caif_serial.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index 8a3054b..7e84175 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -325,6 +325,9 @@ static int ldisc_open(struct tty_struct *tty)
 
 	sprintf(name, "cf%s", tty->name);
 	dev = alloc_netdev(sizeof(*ser), name, caifdev_setup);
+	if (dev == NULL)
+		return -ENOMEM;
+
 	ser = netdev_priv(dev);
 	ser->tty = tty_kref_get(tty);
 	ser->dev = dev;

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