Commit f00af5cc authored by Yang Yingliang's avatar Yang Yingliang Committed by David S. Miller
Browse files

net: sparx5: check return value after calling platform_get_resource() 



It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Fixes: 3cfa11ba ("net: sparx5: add the basic sparx5 driver")
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4bec3cea

drivers/net/ethernet/microchip/sparx5/sparx5_main.c

+4 −0
Original line number Diff line number Diff line
@@ -228,6 +228,10 @@ static int sparx5_create_targets(struct sparx5 *sparx5) 
	for (idx = 0; idx < IO_RANGES; idx++) {

		iores[idx] = platform_get_resource(sparx5->pdev, IORESOURCE_MEM,

						   idx);

		if (!iores[idx]) {

			dev_err(sparx5->dev, "Invalid resource\n");

			return -EINVAL;

		}

		iomem[idx] = devm_ioremap(sparx5->dev,

					  iores[idx]->start,

					  iores[idx]->end - iores[idx]->start