On Tue, Dec 14, 2021 at 11:02:02AM +0000, Brian Starkey wrote:
> Hi,
>
> On Tue, Dec 14, 2021 at 06:08:37PM +0800, Jiasheng Jiang wrote:
> > The return value of kzalloc() needs to be checked.
> > To avoid use of null pointer '&state->base' in case of the
> > failure of alloc.
> >
> > Fixes: 99665d072183 ("drm: mali-dp: add malidp_crtc_state struct")
> > Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
> > ---
>
> You can add my r-b to this one too. Thanks!
Are you (or someone else from arm) also pushing these? Otherwise they'll
get lost.
-Daniel
>
> > drivers/gpu/drm/arm/malidp_crtc.c | 5 ++++-
> > 1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/arm/malidp_crtc.c b/drivers/gpu/drm/arm/malidp_crtc.c
> > index 494075ddbef6..b5928b52e279 100644
> > --- a/drivers/gpu/drm/arm/malidp_crtc.c
> > +++ b/drivers/gpu/drm/arm/malidp_crtc.c
> > @@ -487,7 +487,10 @@ static void malidp_crtc_reset(struct drm_crtc *crtc)
> > if (crtc->state)
> > malidp_crtc_destroy_state(crtc, crtc->state);
> >
> > - __drm_atomic_helper_crtc_reset(crtc, &state->base);
> > + if (state)
> > + __drm_atomic_helper_crtc_reset(crtc, &state->base);
> > + else
> > + __drm_atomic_helper_crtc_reset(crtc, NULL);
> > }
> >
> > static int malidp_crtc_enable_vblank(struct drm_crtc *crtc)
> > --
> > 2.25.1
> >
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
