From: Hanjun Guo <[email protected]> platform_get_resource() may return NULL, add proper check to avoid potential NULL dereferencing.
Signed-off-by: Hanjun Guo <[email protected]> --- drivers/irqchip/irq-mbigen.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c index e1d99f4..167cdb5 100644 --- a/drivers/irqchip/irq-mbigen.c +++ b/drivers/irqchip/irq-mbigen.c @@ -337,6 +337,9 @@ static int mbigen_device_probe(struct platform_device *pdev) mgn_chip->pdev = pdev; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EINVAL; + mgn_chip->base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); if (!mgn_chip->base) { -- 1.7.12.4
