Commit 8ce7aaaa authored by Christophe Jaillet's avatar Christophe Jaillet Committed by David S. Miller

net: dsa: loop: Check for memory allocation failure

If 'devm_kzalloc' fails, a NULL pointer will be dereferenced.
Return -ENOMEM instead, as done for some other memory allocation just a
few lines above.

Fixes: 98cd1552 ("net: dsa: Mock-up driver")
Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d62844a8
...@@ -256,6 +256,9 @@ static int dsa_loop_drv_probe(struct mdio_device *mdiodev) ...@@ -256,6 +256,9 @@ static int dsa_loop_drv_probe(struct mdio_device *mdiodev)
return -ENOMEM; return -ENOMEM;
ps = devm_kzalloc(&mdiodev->dev, sizeof(*ps), GFP_KERNEL); ps = devm_kzalloc(&mdiodev->dev, sizeof(*ps), GFP_KERNEL);
if (!ps)
return -ENOMEM;
ps->netdev = dev_get_by_name(&init_net, pdata->netdev); ps->netdev = dev_get_by_name(&init_net, pdata->netdev);
if (!ps->netdev) if (!ps->netdev)
return -EPROBE_DEFER; return -EPROBE_DEFER;
......
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