Hi Sean,
Thank you for the patch.
On Mon, Jun 17, 2019 at 02:15:42PM -0400, Sean Paul wrote:
> From: Sean Paul <seanp...@chromium.org>
>
> drm_atomic_get_crtc_state() returns an error pointer when it fails, so
> the null check is doing nothing here.
>
> Credit to 0-day/Dan Carpenter for reporting this.
>
> Fixes: 6f3b62781bbd ("drm: Convert connector_helper_funcs->atomic_check to
> accept drm_atomic_state")
> Cc: Daniel Vetter <dan...@ffwll.ch>
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Cc: Jani Nikula <jani.nik...@linux.intel.com>
> Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
> Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
> Cc: Ben Skeggs <bske...@redhat.com>
> Cc: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
> Cc: Kieran Bingham <kieran.bingham+rene...@ideasonboard.com>
> Cc: Eric Anholt <e...@anholt.net>
> Cc: Laurent Pinchart <laurent.pinch...@ideasonboard.com> [for rcar lvds]
> Cc: Sean Paul <seanp...@chromium.org>
> Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
> Cc: Maxime Ripard <maxime.rip...@bootlin.com>
> Cc: Sean Paul <s...@poorly.run>
> Cc: David Airlie <airl...@linux.ie>
> Cc: Lyude Paul <ly...@redhat.com>
> Cc: Karol Herbst <karolher...@gmail.com>
> Cc: Ilia Mirkin <imir...@alum.mit.edu>
> Cc: dri-de...@lists.freedesktop.org
> Cc: intel-gfx@lists.freedesktop.org
> Cc: linux-renesas-...@vger.kernel.org
> Reported-by: kbuild test robot <l...@intel.com>
> Reported-by: Dan Carpenter <dan.carpen...@oracle.com>
> Signed-off-by: Sean Paul <seanp...@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
I have no pending conflicting changes for rcar_lvds.c. Do you plan to
merge this through drm-misc ?
> ---
> drivers/gpu/drm/rcar-du/rcar_lvds.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c
> b/drivers/gpu/drm/rcar-du/rcar_lvds.c
> index f2a5d4d997073..1c62578590f46 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_lvds.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c
> @@ -115,8 +115,8 @@ static int rcar_lvds_connector_atomic_check(struct
> drm_connector *connector,
>
> /* We're not allowed to modify the resolution. */
> crtc_state = drm_atomic_get_crtc_state(state, conn_state->crtc);
> - if (!crtc_state)
> - return -EINVAL;
> + if (IS_ERR(crtc_state))
> + return PTR_ERR(crtc_state);
>
> if (crtc_state->mode.hdisplay != panel_mode->hdisplay ||
> crtc_state->mode.vdisplay != panel_mode->vdisplay)
--
Regards,
Laurent Pinchart
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