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staging: iio: fix trigger handler of iio_simple_dummy driver 

accessing first and last channel fails:
fakedata[0] is never accessed, out-of-bound access for last channel

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Peter Meerwald 2012-06-22 09:47:41 +02:00 committed by Greg Kroah-Hartman
parent 971ff1db41
commit 708706ff29
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/iio/iio_simple_dummy_buffer.c
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@ -75,9 +75,9 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
for (i = 0, j = 0;
i < bitmap_weight(indio_dev->active_scan_mask,
indio_dev->masklength);
i++) {
i++, j++) {
j = find_next_bit(buffer->scan_mask,
indio_dev->masklength, j + 1);
indio_dev->masklength, j);
/* random access read from the 'device' */
data[i] = fakedata[j];
len += 2;