ASoC: cx2072x: fix integer overflow on unsigned int multiply

Browse source

In the case where frac_div larger than 96 the result of an unsigned
multiplication overflows an unsigned int.  For example, this can
happen when the sample_rate is 192000 and pll_input is 122.  Fix
this by casing the first term of the mutiply to a u64. Also remove
the extraneous parentheses around the expression.

Addresses-Coverity: ("Unintentional integer overflow")
Fixes: a497a43637 ("ASoC: Add support for Conexant CX2072X CODEC")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Colin Ian King 2019-05-24 23:25:51 +01:00 • committed by Mark Brown

parent eb5b12843b

commit be0461048b

No known key found for this signature in database

GPG key ID: 24D68B725D5487D0

1 changed files with 1 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

sound/soc/codecs/cx2072x.c

View file