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Input: imx_keypad - check for clk_prepare_enable() error

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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>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Fabio Estevam
2015-06-22 09:22:34 -07:00
committed by Dmitry Torokhov
parent 84c88ef9af
commit e998200c19
1 changed files with 3 additions and 1 deletions
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4
drivers/input/keyboard/imx_keypad.c
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@@ -506,7 +506,9 @@ static int imx_keypad_probe(struct platform_device *pdev)
input_set_drvdata(input_dev, keypad); input_set_drvdata(input_dev, keypad);
/* Ensure that the keypad will stay dormant until opened */ /* 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); imx_keypad_inhibit(keypad);
clk_disable_unprepare(keypad->clk); clk_disable_unprepare(keypad->clk);