diff options
| author | Changcheng Deng <deng.changcheng@zte.com.cn> | 2021-11-25 04:43:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 12:54:17 +0300 |
| commit | 81d2e96ababb7147206f6960e9aac66e6afb87f1 (patch) | |
| tree | 5cee4dd998947f888997ab0acd38307f4da9c553 /drivers/soc | |
| parent | c0a1d844e3e7cd65aa0d884b4d4bbf0351c6df33 (diff) | |
| download | linux-81d2e96ababb7147206f6960e9aac66e6afb87f1.tar.xz | |
PM: AVS: qcom-cpr: Use div64_ul instead of do_div
[ Upstream commit 92c550f9ffd2884bb5def52b5c0485a35e452784 ]
do_div() does a 64-by-32 division. Here the divisor is an unsigned long
which on some platforms is 64 bit wide. So use div64_ul instead of do_div
to avoid a possible truncation.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Changcheng Deng <deng.changcheng@zte.com.cn>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211125014311.45942-1-deng.changcheng@zte.com.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/qcom/cpr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/soc/qcom/cpr.c b/drivers/soc/qcom/cpr.c index b24cc77d1889..6298561bc29c 100644 --- a/drivers/soc/qcom/cpr.c +++ b/drivers/soc/qcom/cpr.c @@ -1043,7 +1043,7 @@ static int cpr_interpolate(const struct corner *corner, int step_volt, return corner->uV; temp = f_diff * (uV_high - uV_low); - do_div(temp, f_high - f_low); + temp = div64_ul(temp, f_high - f_low); /* * max_volt_scale has units of uV/MHz while freq values |