soc: loongson: loongson2_guts: Add check for devm_kstrdup()

Add check for the return value of devm_kstrdup() in loongson2_guts_probe() to catch potential exception. Fixes: b82621a ("soc: loongson: add GUTS driver for loongson-2 platforms") Cc: [email protected] Signed-off-by: Haoxiang Li <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnd Bergmann <[email protected]>
gl-prout · Feb 20, 2025 · e31e3f6 · e31e3f6
1 parent e1fc410
commit e31e3f6
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/drivers/soc/loongson/loongson2_guts.c b/drivers/soc/loongson/loongson2_guts.c
@@ -114,8 +114,11 @@ static int loongson2_guts_probe(struct platform_device *pdev)
 	if (of_property_read_string(root, "model", &machine))
 		of_property_read_string_index(root, "compatible", 0, &machine);
 	of_node_put(root);
-	if (machine)
+	if (machine) {
 		soc_dev_attr.machine = devm_kstrdup(dev, machine, GFP_KERNEL);
+		if (!soc_dev_attr.machine)
+			return -ENOMEM;
+	}
 
 	svr = loongson2_guts_get_svr();
 	soc_die = loongson2_soc_die_match(svr, loongson2_soc_die);