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authorOleksij Rempel <o.rempel@pengutronix.de>2021-04-29 13:08:31 +0200
committerDavid S. Miller <davem@davemloft.net>2021-04-30 00:54:35 +0200
commitd27f0201b93cb1016c232c46e0b8e1bf4c02a7ea (patch)
treead291b525b8e03c5aa1856e54429a3aaf335616a /drivers/net/dsa/microchip
parentbnx2x: Remove redundant assignment to err (diff)
downloadlinux-d27f0201b93cb1016c232c46e0b8e1bf4c02a7ea.tar.xz
linux-d27f0201b93cb1016c232c46e0b8e1bf4c02a7ea.zip
net: dsa: ksz: ksz8863_smi_probe: fix possible NULL pointer dereference
Fix possible NULL pointer dereference in case devm_kzalloc() failed to allocate memory. Fixes: 60a364760002 ("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>
Diffstat (limited to 'drivers/net/dsa/microchip')
-rw-r--r--drivers/net/dsa/microchip/ksz8863_smi.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/dsa/microchip/ksz8863_smi.c b/drivers/net/dsa/microchip/ksz8863_smi.c
index 30d97ea7a949..9fb38e99001a 100644
--- a/drivers/net/dsa/microchip/ksz8863_smi.c
+++ b/drivers/net/dsa/microchip/ksz8863_smi.c
@@ -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);