linux-kernel - [PATCH -next] mg_disk: fix error return code in mg

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Message-ID: <CAPgLHd87a0=e8pX4YRwpxzxk1=YgcVimjxTFnpJKH8wRs1WfjQ@mail.gmail.com>
Date:	Thu, 28 Mar 2013 12:31:55 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	jg1.han@...sung.com, akpm@...ux-foundation.org, rjw@...k.pl
Cc:	yongjun_wei@...ndmicro.com.cn, linux-kernel@...r.kernel.org
Subject: [PATCH -next] mg_disk: fix error return code in mg_probe()

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

Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.

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

diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index 532bb89..a56cfcd 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -892,8 +892,10 @@ static int mg_probe(struct platform_device *plat_dev)
 	gpio_direction_output(host->rst, 1);
 
 	/* reset out pin */
-	if (!(prv_data->dev_attr & MG_DEV_MASK))
+	if (!(prv_data->dev_attr & MG_DEV_MASK)) {
+		err = -EINVAL;
 		goto probe_err_3a;
+	}
 
 	if (prv_data->dev_attr != MG_BOOT_DEV) {
 		rsc = platform_get_resource_byname(plat_dev, IORESOURCE_IO,

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