linux-kernel - [PATCH] spi-topcliff-pch: missing platform_driver_unregister() on error in pch_spi

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Date:	Thu, 25 Apr 2013 15:18:02 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	broonie@...nel.org, grant.likely@...aro.org
Cc:	yongjun_wei@...ndmicro.com.cn,
	spi-devel-general@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: [PATCH] spi-topcliff-pch: missing platform_driver_unregister() on
 error in pch_spi_init()

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

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

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 drivers/spi/spi-topcliff-pch.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index f756481..c8b672e 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;
 }

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