diff options
| -rw-r--r-- | drivers/leds/leds-lp5521.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 8505afe4b52..ddc43152915 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -788,10 +788,17 @@ static int __devinit lp5521_probe(struct i2c_client *client, * LP5521_REG_ENABLE register will not have any effect - strange! */ ret = lp5521_read(client, LP5521_REG_R_CURRENT, &buf); - if (ret || buf != LP5521_REG_R_CURR_DEFAULT) { + if (ret) { dev_err(&client->dev, "error in resetting chip\n"); goto fail2; } + if (buf != LP5521_REG_R_CURR_DEFAULT) { + dev_err(&client->dev, + "unexpected data in register (expected 0x%x got 0x%x)\n", + LP5521_REG_R_CURR_DEFAULT, buf); + ret = -EINVAL; + goto fail2; + } usleep_range(10000, 20000); ret = lp5521_detect(client); |