On Wed, 27 Jan 2021 at 01:11, Hao Wu <[email protected]> wrote: > > Fix potential overflow problem when calculating pwm_duty. > 1. Ensure p->cmr and p->cnr to be from [0,65535], according to the > hardware specification. > 2. Changed duty to uint32_t. However, since MAX_DUTY * (p->cmr+1) > can excceed UINT32_MAX, we convert them to uint64_t in computation > and converted them back to uint32_t. > (duty is guaranteed to be <= MAX_DUTY so it won't overflow.) > > Fixes: CID 1442342 > Suggested-by: Peter Maydell <[email protected]> > Reviewed-by: Doug Evans <[email protected]> > Signed-off-by: Hao Wu <[email protected]> > ---
Applied to target-arm.next, thanks. -- PMM
