diff options
| author | Bo Shen <voice.shen@atmel.com> | 2012-05-11 17:39:28 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-05-11 12:10:04 +0200 |
| commit | b2522f9262539fc328b4b9344f8a2f7ef2cb18d5 (patch) | |
| tree | b3a3ab5a135c32591033ec9842d4103b36d20eb2 /sound/atmel/ac97c.c | |
| parent | 2abb80176cd80ad8e939ead9c785ac17dc9890a4 (diff) | |
ALSA: atmel/ac97c: correct the unexpected behavior when using uninitial value for reset pin
When pdata->reset_pin is passed with a negative value (means gpio
is invalid), then chip->reset_pin will not be assigned to a vaule,
it will use default value 0. This will cause unexpected behavior.
So, add this patch to correct.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/atmel/ac97c.c')
| -rw-r--r-- | sound/atmel/ac97c.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c index 115313ef54d6..f5ded640b395 100644 --- a/sound/atmel/ac97c.c +++ b/sound/atmel/ac97c.c @@ -991,6 +991,8 @@ static int __devinit atmel_ac97c_probe(struct platform_device *pdev) gpio_direction_output(pdata->reset_pin, 1); chip->reset_pin = pdata->reset_pin; } + } else { + chip->reset_pin = -EINVAL; } snd_card_set_dev(card, &pdev->dev); |