[ Upstream commit
20f1932e2282c58cb5ac59517585206cf5b385ae ]
It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
unsigned i;
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!iomem) {
+ dev_err(&pdev->dev, "Invalid resource\n");
+ return -EINVAL;
+ }
if (!request_mem_region(iomem->start, resource_size(iomem), DRV_NAME))
goto err_mem_region;