From: Changcheng Deng <deng.changcheng@xxxxxxxxxx> 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@xxxxxxxxxx> Signed-off-by: Changcheng Deng <deng.changcheng@xxxxxxxxxx> --- drivers/soc/qcom/cpr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/qcom/cpr.c b/drivers/soc/qcom/cpr.c index 1d818a8ba208..e9b854ed1bdf 100644 --- a/drivers/soc/qcom/cpr.c +++ b/drivers/soc/qcom/cpr.c @@ -1010,7 +1010,7 @@ 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 -- 2.25.1
