From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sat, 20 Jul 2013 21:22:10 +0000 (-0300)
Subject: imx-drm: ipu-common: Check the return value from clk_prepare_enable()
X-Git-Tag: v3.12-rc1~183^2~538
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=62645a27ba9b93cf13d505d9ced64171010fb57d;p=linux-2.6-block.git

imx-drm: ipu-common: 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>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index d06b0c81f397..f1299da5ec20 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -1087,7 +1087,11 @@ static int ipu_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, ipu);
 
-	clk_prepare_enable(ipu->clk);
+	ret = clk_prepare_enable(ipu->clk);
+	if (ret) {
+		dev_err(&pdev->dev, "clk_prepare_enable failed: %d\n", ret);
+		return ret;
+	}
 
 	ipu->dev = &pdev->dev;
 	ipu->irq_sync = irq_sync;