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| author | Matt Ranostay <mranostay@gmail.com> | 2016-03-26 06:42:58 +0300 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-03-28 12:09:58 +0300 |
| commit | b74fccad751d2664bda9dd3c90646bb61295e774 (patch) | |
| tree | 9b5f4d47c387baef71e51fbb378ebefbd4b49f85 | |
| parent | f7072198f2178b68eabf25b439f17cfd8e070e9f (diff) | |
| download | linux-b74fccad751d2664bda9dd3c90646bb61295e774.tar.xz | |
iio: health: max30100: correct FIFO check condition
Correct issue that the last entry in FIFO was being read twice due
to an incorrect decrement of entry count variable before condition
check.
Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| -rw-r--r-- | drivers/iio/health/max30100.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iio/health/max30100.c b/drivers/iio/health/max30100.c index 09db89359544..90ab8a2d2846 100644 --- a/drivers/iio/health/max30100.c +++ b/drivers/iio/health/max30100.c @@ -238,12 +238,13 @@ static irqreturn_t max30100_interrupt_handler(int irq, void *private) mutex_lock(&data->lock); - while (cnt-- || (cnt = max30100_fifo_count(data) > 0)) { + while (cnt || (cnt = max30100_fifo_count(data) > 0)) { ret = max30100_read_measurement(data); if (ret) break; iio_push_to_buffers(data->indio_dev, data->buffer); + cnt--; } mutex_unlock(&data->lock); |