hwmon: (amd_energy) Missing platform_driver_unregister() on error in amd_energy_init()

Add the missing platform_driver_unregister() before return
from amd_energy_init() in the error handling case.

Fixes: 8abee9566b7e ("hwmon: Add amd_energy driver to report energy counters")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Naveen krishna Chatradhi <nchatrad@amd.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200527022417.105620-1-weiyongjun1@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/amd_energy.c b/drivers/hwmon/amd_energy.c
index bc8b643..e95b742 100644 (file)
--- a/drivers/hwmon/amd_energy.c
+++ b/drivers/hwmon/amd_energy.c
@@ -379,8 +379,10 @@ static int __init amd_energy_init(void)
                return ret;
 
        amd_energy_platdev = platform_device_alloc(DRVNAME, 0);
-       if (!amd_energy_platdev)
+       if (!amd_energy_platdev) {
+               platform_driver_unregister(&amd_energy_driver);
                return -ENOMEM;
+       }
 
        ret = platform_device_add(amd_energy_platdev);
        if (ret) {