[patch] drm/nv50/pm: signedness bug in nv50_pm_clocks_pre()
Dan Carpenter
dan.carpenter at oracle.com
Mon Jan 9 21:39:19 PST 2012
On Tue, Jan 10, 2012 at 12:28:13AM +0100, Martin Peres wrote:
> Le 04/01/2012 08:20, Dan Carpenter a écrit :
> >calc_mclk() returns zero on success and negative on failure but clk is
> >a u32.
> >
> >Signed-off-by: Dan Carpenter<dan.carpenter at oracle.com>
> >
> >diff --git a/drivers/gpu/drm/nouveau/nv50_pm.c b/drivers/gpu/drm/nouveau/nv50_pm.c
> >index 0393721..3508de9 100644
> >--- a/drivers/gpu/drm/nouveau/nv50_pm.c
> >+++ b/drivers/gpu/drm/nouveau/nv50_pm.c
> >@@ -540,7 +540,7 @@ nv50_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
> > info->mclk_hwsq.len = 0;
> > if (perflvl->memory) {
> > clk = calc_mclk(dev, perflvl->memory,&info->mclk_hwsq);
> >- if (clk< 0) {
> >+ if ((int)clk< 0) {
> > ret = clk;
> > goto error;
> > }
> Well spotted Dan!
>
> Sorry for the late answer, was busy reworking this file for safe reclocking.
>
> I have a slightly different fix for that. Please tell me if It suits
> you: https://gitorious.org/linux-nouveau-pm/linux-nouveau-pm/commit/c1b80360ezd1aa7dd780ac383aae9437c66ef3b89
That link redirects to
https://gitorious.org/linux-nouveau-pm/linux-nouveau-pm/commits/master
and it doesn't show the patch.
But I wasn't a huge fan of adding the cast very much either so I'm
sure your patch is good.
regards,
dan carpenter
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