4.0-stable review patch. If anyone has any objections, please let me know.
------------------ From: Howard Mitchell <[email protected]> commit f073faa73626f41db7050a69edd5074c53ce6d6c upstream. If den=1 and pllin_rate>20MHz then den and num are adjusted to 0 causing a divide by zero error a few lines further on. Therefore this patch correctly scales num and den such that pllin_rate/den < 20MHz as required in the device data sheet. Signed-off-by: Howard Mitchell <[email protected]> Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- sound/soc/codecs/pcm512x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/sound/soc/codecs/pcm512x.c +++ b/sound/soc/codecs/pcm512x.c @@ -576,8 +576,8 @@ static int pcm512x_find_pll_coeff(struct /* pllin_rate / P (or here, den) cannot be greater than 20 MHz */ if (pllin_rate / den > 20000000 && num < 8) { - num *= 20000000 / (pllin_rate / den); - den *= 20000000 / (pllin_rate / den); + num *= DIV_ROUND_UP(pllin_rate / den, 20000000); + den *= DIV_ROUND_UP(pllin_rate / den, 20000000); } dev_dbg(dev, "num / den = %lu / %lu\n", num, den); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
