diff options
Diffstat (limited to 'drivers/gpio/gpio-max732x.c')
| -rw-r--r-- | drivers/gpio/gpio-max732x.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-max732x.c b/drivers/gpio/gpio-max732x.c index 36cb290764b..7c36f2b0983 100644 --- a/drivers/gpio/gpio-max732x.c +++ b/drivers/gpio/gpio-max732x.c @@ -622,6 +622,13 @@ static int max732x_probe(struct i2c_client *client, goto out_failed; } + if (nr_port > 8 && !chip->client_dummy) { + dev_err(&client->dev, + "Failed to allocate second group I2C device\n"); + ret = -ENODEV; + goto out_failed; + } + mutex_init(&chip->lock); max732x_readb(chip, is_group_a(chip, 0), &chip->reg_out[0]); @@ -647,6 +654,8 @@ static int max732x_probe(struct i2c_client *client, return 0; out_failed: + if (chip->client_dummy) + i2c_unregister_device(chip->client_dummy); max732x_irq_teardown(chip); return ret; } |