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| author | Matt Ranostay <matt.ranostay@konsulko.com> | 2017-05-05 00:32:19 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-14 13:05:59 (GMT) |
| commit | 716dd37398adf082a153e2362d7237d8fcb3616f (patch) | |
| tree | c1ae82065e47658ee6a07da08cc66025ebc61eef /drivers/iio | |
| parent | bad3b49b01aaafc000f2ffe1302d86ca397491ed (diff) | |
| download | linux-716dd37398adf082a153e2362d7237d8fcb3616f.tar.xz | |
iio: proximity: as3935: fix iio_trigger_poll issue
commit 9122b54f266ddee09654fe3fbc503c1a60f4a01c upstream.
Using iio_trigger_poll() can oops when multiple interrupts
happen before the first is handled.
Use iio_trigger_poll_chained() instead and use the timestamp
when processed, since it will be in theory be 2 ms max latency.
Fixes: 24ddb0e4bba4 ("iio: Add AS3935 lightning sensor support")
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/proximity/as3935.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c index 75ba7c7..268210e 100644 --- a/drivers/iio/proximity/as3935.c +++ b/drivers/iio/proximity/as3935.c @@ -215,7 +215,7 @@ static irqreturn_t as3935_trigger_handler(int irq, void *private) st->buffer[0] = val & AS3935_DATA_MASK; iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer, - pf->timestamp); + iio_get_time_ns(indio_dev)); err_read: iio_trigger_notify_done(indio_dev->trig); @@ -244,7 +244,7 @@ static void as3935_event_work(struct work_struct *work) switch (val) { case AS3935_EVENT_INT: - iio_trigger_poll(st->trig); + iio_trigger_poll_chained(st->trig); break; case AS3935_NOISE_INT: dev_warn(&st->spi->dev, "noise level is too high\n"); |