spi-topcliff-pch: missing platform_driver_unregister() on error in pch_spi_init()

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

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index f756481b0fea..c8b672e07ba0 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -1789,8 +1789,10 @@ static int __init pch_spi_init(void)
                 return ret;
 
         ret = pci_register_driver(&pch_spi_pcidev_driver);
-        if (ret)
+        if (ret) {
+                platform_driver_unregister(&pch_spi_pd_driver);
                 return ret;
+        }
 
         return 0;
 }