[PATCH] Input: imx_keypad - check for clk_prepare_enable() error

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <fabio.estevam@freescale.com>

clk_prepare_enable() may fail, so we should better check its return value
and propagate it in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
 drivers/input/keyboard/imx_keypad.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index 2e855e6..d2ea863 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -506,7 +506,9 @@ static int imx_keypad_probe(struct platform_device *pdev)
 	input_set_drvdata(input_dev, keypad);
 
 	/* Ensure that the keypad will stay dormant until opened */
-	clk_prepare_enable(keypad->clk);
+	error = clk_prepare_enable(keypad->clk);
+	if (error)
+		return error;
 	imx_keypad_inhibit(keypad);
 	clk_disable_unprepare(keypad->clk);
 
-- 
1.9.1

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