diff options
Diffstat (limited to 'drivers/leds/leds-lp5521.c')
| -rw-r--r-- | drivers/leds/leds-lp5521.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 410a723b8691..23815624f35e 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -193,9 +193,14 @@ static int lp5521_load_program(struct lp5521_engine *eng, const u8 *pattern) /* move current engine to direct mode and remember the state */ ret = lp5521_set_engine_mode(eng, LP5521_CMD_DIRECT); + if (ret) + return ret; + /* Mode change requires min 500 us delay. 1 - 2 ms with margin */ usleep_range(1000, 2000); - ret |= lp5521_read(client, LP5521_REG_OP_MODE, &mode); + ret = lp5521_read(client, LP5521_REG_OP_MODE, &mode); + if (ret) + return ret; /* For loading, all the engines to load mode */ lp5521_write(client, LP5521_REG_OP_MODE, LP5521_CMD_DIRECT); @@ -211,8 +216,7 @@ static int lp5521_load_program(struct lp5521_engine *eng, const u8 *pattern) LP5521_PROG_MEM_SIZE, pattern); - ret |= lp5521_write(client, LP5521_REG_OP_MODE, mode); - return ret; + return lp5521_write(client, LP5521_REG_OP_MODE, mode); } static int lp5521_set_led_current(struct lp5521_chip *chip, int led, u8 curr) @@ -785,7 +789,7 @@ 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 (buf != LP5521_REG_R_CURR_DEFAULT) { + if (ret || buf != LP5521_REG_R_CURR_DEFAULT) { dev_err(&client->dev, "error in resetting chip\n"); goto fail2; } |
