From 1222934e54b63752b4b1ad305d6a7f632a3ae46d Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Thu, 8 May 2014 12:01:50 +0300
Subject: dmaengine: dw: check return code of dma_async_device_register()

dma_async_device_register() may return non-zero error code. In such case we
have to follow error path.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index d539019..a27ded5 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -1659,13 +1659,17 @@ int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata)
 
 	dma_writel(dw, CFG, DW_CFG_DMA_EN);
 
+	err = dma_async_device_register(&dw->dma);
+	if (err)
+		goto err_dma_register;
+
 	dev_info(chip->dev, "DesignWare DMA Controller, %d channels\n",
 		 nr_channels);
 
-	dma_async_device_register(&dw->dma);
-
 	return 0;
 
+err_dma_register:
+	free_irq(chip->irq, dw);
 err_pdata:
 	clk_disable_unprepare(dw->clk);
 	return err;
-- 
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