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[1/2] Input: imx_keypad - check the return value from clk_prepare_enable()

Message ID 1373517888-15615-1-git-send-email-festevam@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Fabio Estevam July 11, 2013, 4:44 a.m. UTC 
From: Fabio Estevam <fabio.estevam@freescale.com>

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>
---
 drivers/input/keyboard/imx_keypad.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index 03c8cc5..99d3360 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -512,7 +512,9 @@  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);