[media] m88ts2022: fix 32bit overflow on filter calc

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Maximum satellite symbol rate used is 45000000Sps which overflows
when multiplied by 135. As final calculation result is fraction,
we could use mult_frac macro in order to keep calculation inside
32 bit number limits and prevent overflow.

Original bug and fix was provided by Nibble Max. I decided to
implement it differently as it is now.

Reported-by: Nibble Max <nibble.max@gmail.com>
Tested-by: Nibble Max <nibble.max@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

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Antti Palosaari 2014-08-21 14:02:27 -03:00 • committed by Mauro Carvalho Chehab

parent de3f2e2e0a

commit f538e08513

1 changed files with 1 additions and 1 deletions

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drivers/media/tuners/m88ts2022.c

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