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net: dsa: ksz: ksz8863_smi_probe: fix possible NULL pointer dereference

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Fix possible NULL pointer dereference in case devm_kzalloc() failed to
allocate memory.

Fixes: 60a3647600 ("net: dsa: microchip: Add Microchip KSZ8863 SMI based driver support")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Oleksij Rempel
2021-04-29 13:08:31 +02:00
committed by David S. Miller
parent 8343b1f8b9
commit d27f0201b9
1 changed files with 3 additions and 0 deletions
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3
drivers/net/dsa/microchip/ksz8863_smi.c
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@@ -147,6 +147,9 @@ static int ksz8863_smi_probe(struct mdio_device *mdiodev)
int i;
ksz8 = devm_kzalloc(&mdiodev->dev, sizeof(struct ksz8), GFP_KERNEL);
if (!ksz8)
return -ENOMEM;
ksz8->priv = mdiodev;
dev = ksz_switch_alloc(&mdiodev->dev, ksz8);