From 09d306d79dd784415c37363c02b5d9eb0157d9a4 Mon Sep 17 00:00:00 2001 From: "xypron.glpk@gmx.de" Date: Sun, 31 Jul 2016 09:58:44 +0200 Subject: [PATCH] net: ethernet: ax88796: avoid null pointer dereference If platform_get_resource fails, mem2 is null. Do not dereference null. Signed-off-by: Heinrich Schuchardt Signed-off-by: David S. Miller --- drivers/net/ethernet/8390/ax88796.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c index 5698f5354c0b..39ca9350d1b2 100644 --- a/drivers/net/ethernet/8390/ax88796.c +++ b/drivers/net/ethernet/8390/ax88796.c @@ -910,7 +910,8 @@ static int ax_probe(struct platform_device *pdev) iounmap(ax->map2); exit_mem2: - release_mem_region(mem2->start, mem2_size); + if (mem2) + release_mem_region(mem2->start, mem2_size); exit_mem1: iounmap(ei_local->mem); -- 2.20.1