diff options
| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2018-07-04 17:28:28 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-04 17:41:32 +0300 |
| commit | da13ed1d80fe6a4d95043aaf2e0aff292ade5708 (patch) | |
| tree | 1adbddefd76aa07310cf0d778da45c816efa6b4d /sound/soc/codecs/nau8825.c | |
| parent | a655de808cbde6c58b3298e704d786b53f59fb5d (diff) | |
| download | linux-da13ed1d80fe6a4d95043aaf2e0aff292ade5708.tar.xz | |
ASoC: nau8825: use 64-bit arithmetic instead of 32-bit
Add suffix ULL to constant 256 in order to give the compiler complete
information about the proper arithmetic to use.
Notice that such constant is used in a context that expects an
expression of type u64 (64 bits, unsigned) and the following
expression is currently being evaluated using 32-bit arithmetic:
256 * fs * 2 * mclk_src_scaling[i].param
Addresses-Coverity-ID: 1339616 ("Unintentional integer overflow")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/nau8825.c')
| -rw-r--r-- | sound/soc/codecs/nau8825.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c index dc6ea4987b7d..b9fed99d8b5e 100644 --- a/sound/soc/codecs/nau8825.c +++ b/sound/soc/codecs/nau8825.c @@ -2016,7 +2016,7 @@ static int nau8825_calc_fll_param(unsigned int fll_in, unsigned int fs, fvco_max = 0; fvco_sel = ARRAY_SIZE(mclk_src_scaling); for (i = 0; i < ARRAY_SIZE(mclk_src_scaling); i++) { - fvco = 256 * fs * 2 * mclk_src_scaling[i].param; + fvco = 256ULL * fs * 2 * mclk_src_scaling[i].param; if (fvco > NAU_FVCO_MIN && fvco < NAU_FVCO_MAX && fvco_max < fvco) { fvco_max = fvco; |