diff options
Diffstat (limited to 'drivers/mfd/twl6040.c')
| -rw-r--r-- | drivers/mfd/twl6040.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c index f15114f..6e88f25 100644 --- a/drivers/mfd/twl6040.c +++ b/drivers/mfd/twl6040.c @@ -661,6 +661,11 @@ static int twl6040_probe(struct i2c_client *client, init_completion(&twl6040->ready); twl6040->rev = twl6040_reg_read(twl6040, TWL6040_REG_ASICREV); + if (twl6040->rev < 0) { + dev_err(&client->dev, "Failed to read revision register: %d\n", + twl6040->rev); + goto gpio_err; + } /* ERRATA: Automatic power-up is not possible in ES1.0 */ if (twl6040_get_revid(twl6040) > TWL6040_REV_ES1_0) |
