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authorFabio Estevam <fabio.estevam@freescale.com>2014-01-26 01:46:23 +0400
committerTejun Heo <tj@kernel.org>2014-01-29 22:15:11 +0400
commit0475c947d221f9250bbdf430b2604f828b643ee0 (patch)
treebf215ae64752ed8a463dd280134c8567c7c5b881 /drivers/ata/pata_imx.c
parent0e47c969c65e213421450c31043353ebe3c67e0c (diff)
downloadlinux-0475c947d221f9250bbdf430b2604f828b643ee0.tar.xz
ata: pata_imx: Check the return value from clk_prepare_enable()
clk_prepare_enable() may fail, so let's check its return value and propagate it in the case of error. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/pata_imx.c')
-rw-r--r--drivers/ata/pata_imx.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/ata/pata_imx.c b/drivers/ata/pata_imx.c
index 26386f0b89a8..b0b18ec5465f 100644
--- a/drivers/ata/pata_imx.c
+++ b/drivers/ata/pata_imx.c
@@ -119,7 +119,9 @@ static int pata_imx_probe(struct platform_device *pdev)
return PTR_ERR(priv->clk);
}
- clk_prepare_enable(priv->clk);
+ ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ return ret;
host = ata_host_alloc(&pdev->dev, 1);
if (!host) {
@@ -212,7 +214,9 @@ static int pata_imx_resume(struct device *dev)
struct ata_host *host = dev_get_drvdata(dev);
struct pata_imx_priv *priv = host->private_data;
- clk_prepare_enable(priv->clk);
+ int ret = clk_prepare_enable(priv->clk);
+ if (ret)
+ return ret;
__raw_writel(priv->ata_ctl, priv->host_regs + PATA_IMX_ATA_CONTROL);