From: Tomi Valkeinen Date: Fri, 29 May 2015 08:03:15 +0000 (+0300) Subject: drm: omapdrm: omap_plane_setup() cannot fail, use WARN X-Git-Tag: firefly_0821_release~176^2~1437^2^2~12 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d9157dfd045f27f376edeab164203f1a68ba3ba4;p=firefly-linux-kernel-4.4.55.git drm: omapdrm: omap_plane_setup() cannot fail, use WARN With atomic modesetting, omap_plane_setup()'s return value is ignored as the functions using it cannot fail. dispc_ovl_setup(), called by omap_plane_setup(), can fail (but shouldn't). Instead of returning an error from omap_plane_setup() which gets ignored, return void and use WARN if dispc_ovl_setup() fails. Signed-off-by: Tomi Valkeinen Acked-by: Laurent Pinchart --- diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c index 448707669690..a8e617f9f2af 100644 --- a/drivers/gpu/drm/omapdrm/omap_plane.c +++ b/drivers/gpu/drm/omapdrm/omap_plane.c @@ -58,12 +58,11 @@ to_omap_plane_state(struct drm_plane_state *state) return container_of(state, struct omap_plane_state, base); } -static int omap_plane_setup(struct drm_plane *plane) +static void omap_plane_setup(struct drm_plane *plane) { struct omap_plane *omap_plane = to_omap_plane(plane); struct drm_plane_state *state = plane->state; struct omap_plane_state *omap_state = to_omap_plane_state(state); - struct drm_device *dev = plane->dev; struct omap_overlay_info info; struct omap_drm_window win; int ret; @@ -72,7 +71,7 @@ static int omap_plane_setup(struct drm_plane *plane) if (!state->crtc) { dispc_ovl_enable(omap_plane->id, false); - return 0; + return; } memset(&info, 0, sizeof(info)); @@ -123,14 +122,10 @@ static int omap_plane_setup(struct drm_plane *plane) /* and finally, update omapdss: */ ret = dispc_ovl_setup(omap_plane->id, &info, false, omap_crtc_timings(state->crtc), false); - if (ret) { - dev_err(dev->dev, "dispc_ovl_setup failed: %d\n", ret); - return ret; - } + if (WARN_ON(ret)) + return; dispc_ovl_enable(omap_plane->id, true); - - return 0; } static int omap_plane_prepare_fb(struct drm_plane *plane,