platform_get_resource() may return NULL pointer, we need check its
return value to avoid null-ptr-deref while using it.
Fixes: 55a042b3f68f ("soc/tegra: fuse: Fix reading registers using DMA on Tegra20")
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
The previous patch link:
https://lore.kernel.org/lkml/20220505093720.1283942-1-yangyingliang@xxxxxxxxxx/
---
drivers/soc/tegra/fuse/fuse-tegra.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index 6542267a224d..bd2b00f2d617 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -219,12 +219,12 @@ static int tegra_fuse_probe(struct platform_device *pdev)
/* take over the memory region from the early initialization */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- fuse->phys = res->start;
fuse->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(fuse->base)) {
err = PTR_ERR(fuse->base);
return err;
}
+ fuse->phys = res->start;
fuse->clk = devm_clk_get(&pdev->dev, "fuse");
if (IS_ERR(fuse->clk)) {
--
2.25.1
