diff options
| author |   Dan Murphy <dmurphy@ti.com> | 2019-01-11 13:57:07 -0600 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-01-12 18:32:28 +0000 |
| commit | f214ff521fb1f861c8d7f7d0af98b06bf61b3369 (patch) | |
| tree | 713a24a92910184106f7c920a6a6a5ee8778aec7 /drivers/iio | |
| parent | tools: iio: iio_generic_buffer: make num_loops signed (diff) | |
| download | wireguard-linux-f214ff521fb1f861c8d7f7d0af98b06bf61b3369.tar.xz wireguard-linux-f214ff521fb1f861c8d7f7d0af98b06bf61b3369.zip | |
iio: ti-ads8688: Update buffer allocation for timestamps
Per Jonathan Cameron, the buffer needs to allocate room for a
64 bit timestamp as well as the channels. Change the buffer
to allocate this additional space.
Fixes: 2a86487786b5c ("iio: adc: ti-ads8688: add trigger and buffer support")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/ti-ads8688.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c index 184d686ebd99..8b4568edd5cb 100644 --- a/drivers/iio/adc/ti-ads8688.c +++ b/drivers/iio/adc/ti-ads8688.c @@ -41,6 +41,7 @@ #define ADS8688_VREF_MV 4096 #define ADS8688_REALBITS 16 +#define ADS8688_MAX_CHANNELS 8 /* * enum ads8688_range - ADS8688 reference voltage range @@ -385,7 +386,7 @@ static irqreturn_t ads8688_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; - u16 buffer[8]; + u16 buffer[ADS8688_MAX_CHANNELS + sizeof(s64)/sizeof(u16)]; int i, j = 0; for (i = 0; i < indio_dev->masklength; i++) { |