linux-kernel - [PATCH -next] rtc: rtc-pcf2123: fix error return code in pcf2123

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Date:	Thu, 25 Apr 2013 17:34:00 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	a.zummo@...ertech.it, akpm@...ux-foundation.org
Cc:	yongjun_wei@...ndmicro.com.cn, rtc-linux@...glegroups.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH -next] rtc: rtc-pcf2123: fix error return code in pcf2123_probe()

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

Fix to return -ENODEV in the chip not found error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 drivers/rtc/rtc-pcf2123.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index 6a3f329..796a6c5 100644
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -266,6 +266,7 @@ static int pcf2123_probe(struct spi_device *spi)
 
 	if (!(rxbuf[0] & 0x20)) {
 		dev_err(&spi->dev, "chip not found\n");
+		ret = -ENODEV;
 		goto kfree_exit;
 	}
 

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