diff options
Diffstat (limited to 'drivers/iio/humidity/dht11.c')
| -rw-r--r-- | drivers/iio/humidity/dht11.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c index 1165b1c4f9d6..1ca284aaacfc 100644 --- a/drivers/iio/humidity/dht11.c +++ b/drivers/iio/humidity/dht11.c @@ -161,7 +161,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev, int *val, int *val2, long m) { struct dht11 *dht11 = iio_priv(iio_dev); - int ret, timeres; + int ret, timeres, offset; mutex_lock(&dht11->lock); if (dht11->timestamp + DHT11_DATA_VALID_TIME < ktime_get_real_ns()) { @@ -208,11 +208,14 @@ static int dht11_read_raw(struct iio_dev *iio_dev, if (ret < 0) goto err; - ret = dht11_decode(dht11, - dht11->num_edges == DHT11_EDGES_PER_READ ? - DHT11_EDGES_PREAMBLE : - DHT11_EDGES_PREAMBLE - 2, - timeres); + offset = DHT11_EDGES_PREAMBLE + + dht11->num_edges - DHT11_EDGES_PER_READ; + for (; offset >= 0; --offset) { + ret = dht11_decode(dht11, offset, timeres); + if (!ret) + break; + } + if (ret) goto err; } |