@@ -604,17 +604,17 @@ static struct platform_driver ramoops_driver = {
},
};
-static void ramoops_register_dummy(void)
+static int ramoops_register_dummy(void)
{
if (!mem_size)
- return;
+ return -EINVAL;
pr_info("using module parameters\n");
dummy_data = kzalloc(sizeof(*dummy_data), GFP_KERNEL);
if (!dummy_data) {
pr_info("could not allocate pdata\n");
- return;
+ return -ENOMEM;
}
dummy_data->mem_size = mem_size;
@@ -636,13 +636,25 @@ static void ramoops_register_dummy(void)
if (IS_ERR(dummy)) {
pr_info("could not create platform device: %ld\n",
PTR_ERR(dummy));
+ kfree(dummy_data);
+ return PTR_ERR(dummy);
}
+ return 0;
}
static int __init ramoops_init(void)
{
- ramoops_register_dummy();
- return platform_driver_register(&ramoops_driver);
+ int ret = ramoops_register_dummy();
+
+ if (ret != 0)
+ return ret;
+
+ ret = platform_driver_register(&ramoops_driver);
+ if (ret != 0) {
+ platform_device_unregister(dummy);
+ kfree(dummy_data);
+ }
+ return ret;
}
postcore_initcall(ramoops_init);