From ba46b576a7954fa54ff4c1ef976624794b6668f6 Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Thu, 29 Apr 2021 13:08:32 +0200 Subject: [PATCH] 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 Signed-off-by: Oleksij Rempel Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/dsa/microchip/ksz8795_spi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/dsa/microchip/ksz8795_spi.c b/drivers/net/dsa/microchip/ksz8795_spi.c index 85ba12aa..ea7550d 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); -- 2.7.4