diff options
Diffstat (limited to 'drivers/mfd/qnap-mcu.c')
| -rw-r--r-- | drivers/mfd/qnap-mcu.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/mfd/qnap-mcu.c b/drivers/mfd/qnap-mcu.c index 89a8a1913d42..9d3edc3e7d93 100644 --- a/drivers/mfd/qnap-mcu.c +++ b/drivers/mfd/qnap-mcu.c @@ -163,7 +163,11 @@ int qnap_mcu_exec(struct qnap_mcu *mcu, reply->received = 0; reinit_completion(&reply->done); - qnap_mcu_write(mcu, cmd_data, cmd_data_size); + ret = qnap_mcu_write(mcu, cmd_data, cmd_data_size); + if (ret < 0) { + mutex_unlock(&mcu->bus_lock); + return ret; + } serdev_device_wait_until_sent(mcu->serdev, msecs_to_jiffies(QNAP_MCU_TIMEOUT_MS)); |