On Tue, 22 Jan 2019, Mika Kahola <[email protected]> wrote:
> Avoid divide by zero warning on static analysis.
>
> Signed-off-by: Mika Kahola <[email protected]>
> ---
> drivers/gpu/drm/i915/intel_pm.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 8b63afa3a221..6a8e8b3f44c2 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3912,8 +3912,10 @@ skl_ddb_get_pipe_allocation_limits(struct
> drm_i915_private *dev_priv,
> pipe_width = hdisplay;
> }
if (WARN_ON(total_width == 0))
return;
?
BR,
Jani.
>
> - alloc->start = ddb_size * width_before_pipe / total_width;
> - alloc->end = ddb_size * (width_before_pipe + pipe_width) / total_width;
> + alloc->start = total_width == 0 ?
> + 0 : ddb_size * width_before_pipe / total_width;
> + alloc->end = total_width == 0 ?
> + 0 : ddb_size * (width_before_pipe + pipe_width) / total_width;
> }
>
> static unsigned int skl_cursor_allocation(int num_active)
--
Jani Nikula, Intel Open Source Graphics Center
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