linux-kernel - [PATCH -next] mxs/spi: fix error return code in mxs_spi

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Date:	Wed, 3 Apr 2013 21:06:40 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	grant.likely@...retlab.ca, broonie@...nsource.wolfsonmicro.com,
	rob.herring@...xeda.com
Cc:	yongjun_wei@...ndmicro.com.cn,
	spi-devel-general@...ts.sourceforge.net,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH -next] mxs/spi: fix error return code in mxs_spi_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/spi/spi-mxs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 7b1c014..8498276 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -570,6 +570,7 @@ static int mxs_spi_probe(struct platform_device *pdev)
 	ssp->dmach = dma_request_slave_channel(&pdev->dev, "rx-tx");
 	if (!ssp->dmach) {
 		dev_err(ssp->dev, "Failed to request DMA\n");
+		ret = -ENODEV;
 		goto out_master_free;
 	}
 

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