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| author | Dan Murphy <dmurphy@ti.com> | 2019-01-11 13:57:07 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-15 08:10:10 +0100 |
| commit | 3e17af253e627d4c652f9a9eae7e02fc1936765b (patch) | |
| tree | b675316d1efd8bf9c4c3c4a72efe0b26d3909076 | |
| parent | af770a1558c4415cd4b74cf7bf30e09be7b77a30 (diff) | |
| download | linux-stable-3e17af253e627d4c652f9a9eae7e02fc1936765b.tar.gz linux-stable-3e17af253e627d4c652f9a9eae7e02fc1936765b.tar.bz2 linux-stable-3e17af253e627d4c652f9a9eae7e02fc1936765b.zip | |
iio: ti-ads8688: Update buffer allocation for timestamps
commit f214ff521fb1f861c8d7f7d0af98b06bf61b3369 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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++) { |