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>

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);