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leds: leds-lp3944: properly handle lp3944_configure fail in lp3944_probe

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In current implementation, lp3944_probe return 0 even if lp3944_configure fail.
Therefore, led_classdev_unregister will be executed twice
( in error handling of lp3944_configure and lp3944_remove ).
This patch properly handles lp3944_configure fail in lp3944_probe.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Axel Lin 2010-05-17 17:47:48 +08:00 committed by Richard Purdie
parent 569762ef3d
commit 7e1ce34f25
1 changed files with 7 additions and 2 deletions
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9
drivers/leds/leds-lp3944.c
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@ -379,6 +379,7 @@ static int __devinit lp3944_probe(struct i2c_client *client,
{
struct lp3944_platform_data *lp3944_pdata = client->dev.platform_data;
struct lp3944_data *data;
int err;
if (lp3944_pdata == NULL) {
dev_err(&client->dev, "no platform data\n");
@ -401,9 +402,13 @@ static int __devinit lp3944_probe(struct i2c_client *client,
mutex_init(&data->lock);
dev_info(&client->dev, "lp3944 enabled\n");
err = lp3944_configure(client, data, lp3944_pdata);
if (err < 0) {
kfree(data);
return err;
}
lp3944_configure(client, data, lp3944_pdata);
dev_info(&client->dev, "lp3944 enabled\n");
return 0;
}