Dne petek, 19. avgust 2022 ob 17:37:20 CEST je Nicolas Dufresne napisal(a): > Le vendredi 19 août 2022 à 06:17 +0200, Jernej Škrabec a écrit : > > Dne četrtek, 18. avgust 2022 ob 22:33:07 CEST je Nicolas Dufresne napisal(a): > > > From: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> > > > > > > The cedrus_hw_resume() crashes with NULL deference on driver probe if > > > runtime PM is disabled because it uses platform data that hasn't been > > > set up yet. Fix this by setting the platform data earlier during probe. > > > > Does it even work without PM? Maybe it would be better if Cedrus would > > select PM in Kconfig. > > I cannot comment myself on this, but it does not seem to invalidate this > Dmitry's fix. If NULL pointer dereference happens only when PM is disabled, then it does. I have PM always enabled and I never experienced above issue. Best regards, Jernej > > > Best regards, > > Jernej > > > > > Cc: stable@xxxxxxxxxxxxxxx > > > Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> > > > Signed-off-by: Nicolas Dufresne <nicolas.dufresne@xxxxxxxxxxxxx> > > > --- > > > > > > drivers/staging/media/sunxi/cedrus/cedrus.c | 4 ++-- > > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > > > diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c > > > b/drivers/staging/media/sunxi/cedrus/cedrus.c index > > > 960a0130cd620..55c54dfdc585c 100644 > > > --- a/drivers/staging/media/sunxi/cedrus/cedrus.c > > > +++ b/drivers/staging/media/sunxi/cedrus/cedrus.c > > > @@ -448,6 +448,8 @@ static int cedrus_probe(struct platform_device > > > *pdev) > > > > > > if (!dev) > > > > > > return -ENOMEM; > > > > > > + platform_set_drvdata(pdev, dev); > > > + > > > > > > dev->vfd = cedrus_video_device; > > > dev->dev = &pdev->dev; > > > dev->pdev = pdev; > > > > > > @@ -521,8 +523,6 @@ static int cedrus_probe(struct platform_device > > > *pdev) > > > > > > goto err_m2m_mc; > > > > > > } > > > > > > - platform_set_drvdata(pdev, dev); > > > - > > > > > > return 0; > > > > > > err_m2m_mc:
