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LEDS: propagate error codes in blinkm_detect()

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Use the error codes from the lower levels instead of -ENODEV.

Signed-off-by: Dan Carpenter <[email protected]>
Acked-by: Jan-Simon Möller <[email protected]>
Signed-off-by: Bryan Wu <[email protected]>
This commit is contained in:
Dan Carpenter 2012-07-26 16:00:25 +08:00 • committed by Bryan Wu
commit 18d4a06f9b
1 changed files with 2 additions and 2 deletions
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4
drivers/leds/leds-blinkm.c
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@ -617,11 +617,11 @@ static int blinkm_detect(struct i2c_client *client, struct i2c_board_info *info)
/* Step 1: Read BlinkM address back - cmd_char 'a' */
ret = blinkm_write(client, BLM_GET_ADDR, NULL);
if (ret < 0)
return -ENODEV;
return ret;
usleep_range(20000, 30000); /* allow a small delay */
ret = blinkm_read(client, BLM_GET_ADDR, tmpargs);
if (ret < 0)
return -ENODEV;
return ret;
if (tmpargs[0] != 0x09) {
dev_err(&client->dev, "enodev DEV ADDR = 0x%02X\n", tmpargs[0]);