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authorOleksij Rempel <o.rempel@pengutronix.de>2021-04-29 13:08:32 +0200
committerDavid S. Miller <davem@davemloft.net>2021-04-30 00:54:35 +0200
commitba46b576a7954fa54ff4c1ef976624794b6668f6 (patch)
tree4e16aa73127f594967c7dee39a5782bb139afc3f /drivers
parentnet: dsa: ksz: ksz8863_smi_probe: fix possible NULL pointer dereference (diff)
downloadlinux-ba46b576a7954fa54ff4c1ef976624794b6668f6.tar.xz
linux-ba46b576a7954fa54ff4c1ef976624794b6668f6.zip
net: dsa: ksz: ksz8795_spi_probe: fix possible NULL pointer dereference
Fix possible NULL pointer dereference in case devm_kzalloc() failed to allocate memory Fixes: cc13e52c3a89 ("net: dsa: microchip: Add Microchip KSZ8863 SPI 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')
-rw-r--r--drivers/net/dsa/microchip/ksz8795_spi.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/dsa/microchip/ksz8795_spi.c b/drivers/net/dsa/microchip/ksz8795_spi.c
index 85ba12aa82d8..ea7550d1b634 100644
--- a/drivers/net/dsa/microchip/ksz8795_spi.c
+++ b/drivers/net/dsa/microchip/ksz8795_spi.c
@@ -41,6 +41,9 @@ static int ksz8795_spi_probe(struct spi_device *spi)
int i, ret = 0;
ksz8 = devm_kzalloc(&spi->dev, sizeof(struct ksz8), GFP_KERNEL);
+ if (!ksz8)
+ return -ENOMEM;
+
ksz8->priv = spi;
dev = ksz_switch_alloc(&spi->dev, ksz8);