On Mon, 25 Apr 2016 12:04:54 +0300 Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote: > If kmalloc() returned NULL we would end up dereferencing "state" a > couple lines later. > > Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Acked-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx> Thanks, Boris > > diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c > index 8df0aaf..867069b 100644 > --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c > +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c > @@ -415,8 +415,9 @@ atmel_hlcdc_crtc_duplicate_state(struct drm_crtc *crtc) > return NULL; > > state = kmalloc(sizeof(*state), GFP_KERNEL); > - if (state) > - __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base); > + if (!state) > + return NULL; > + __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base); > > cur = drm_crtc_state_to_atmel_hlcdc_crtc_state(crtc->state); > state->output_mode = cur->output_mode; -- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
