nvmem: sprd: Fix return value of sprd_efuse_probe()

When call function devm_platform_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.

Fixes: 096030e ("nvmem: sprd: Add Spreadtrum SoCs eFuse support")
Signed-off-by: Tiezhu Yang <[email protected]>
Signed-off-by: Srinivas Kandagatla <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: seehearfeel

drivers/nvmem/sprd-efuse.c

@@ -378,8 +378,8 @@ static int sprd_efuse_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	efuse->base = devm_platform_ioremap_resource(pdev, 0);
-	if (!efuse->base)
-		return -ENOMEM;
+	if (IS_ERR(efuse->base))
+		return PTR_ERR(efuse->base);
 
 	ret = of_hwspin_lock_get_id(np, 0);
 	if (ret < 0) {