staging:iio:ad7887: Preallocate sample buffer

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We know that the sample buffer will at most need to hold two 16 bit samples and
the 64 bit aligned 64 bit timestamp. Preallocate a buffer large enough to hold
this instead of allocating and freeing it each time a sample is read.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

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Lars-Peter Clausen 2012-11-05 09:56:00 +00:00 • committed by Jonathan Cameron

parent 3c7f0c2b11

commit bd6880477a

2 changed files with 6 additions and 15 deletions

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6

drivers/staging/iio/adc/ad7887.h

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15

drivers/staging/iio/adc/ad7887_ring.c

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