From 50a749c1f2fc8f03232c174c9dbc78a78f9bebfd Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 23 Jul 2010 01:05:05 +0000 Subject: [PATCH] mv643xx_eth: potential null dereference We assume that "pd" can be null on the previous line, and throughout the function so we should check it here as well. This was introduced by 9b2c2ff7a1c0 "mv643xx_eth: use sw csum for big packets" Signed-off-by: Dan Carpenter Acked-by: Lennert Buytenhek Signed-off-by: David S. Miller --- drivers/net/mv643xx_eth.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index 2fcdb1e1b99..2d488abcf62 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -2675,7 +2675,8 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev) * Detect hardware parameters. */ msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000; - msp->tx_csum_limit = pd->tx_csum_limit ? pd->tx_csum_limit : 9 * 1024; + msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ? + pd->tx_csum_limit : 9 * 1024; infer_hw_params(msp); platform_set_drvdata(pdev, msp); -- 2.39.3