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| author | Axel Lin <axel.lin@gmail.com> | 2010-05-17 17:47:48 +0800 |
|---|---|---|
| committer | Richard Purdie <rpurdie@linux.intel.com> | 2010-05-26 13:07:55 +0100 |
| commit | 7e1ce34f25c984a93dc0a2d8c217f7f78516b376 (patch) | |
| tree | 9c34d31b78f255e6ff00107075ca340c09ba8970 /drivers | |
| parent | 569762ef3dcf8fc5aecdb059d8c0741b90fe1d17 (diff) | |
| download | linux-stable-7e1ce34f25c984a93dc0a2d8c217f7f78516b376.tar.gz linux-stable-7e1ce34f25c984a93dc0a2d8c217f7f78516b376.tar.bz2 linux-stable-7e1ce34f25c984a93dc0a2d8c217f7f78516b376.zip | |
leds: leds-lp3944: properly handle lp3944_configure fail in lp3944_probe
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/leds/leds-lp3944.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/leds/leds-lp3944.c b/drivers/leds/leds-lp3944.c index 8d5ecceba181..932a58da76c4 100644 --- a/drivers/leds/leds-lp3944.c +++ b/drivers/leds/leds-lp3944.c @@ -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; } |