linux-kernel - [PATCH v2 04/14] drm/bridge: ti-sn65dsi86: Reorder remove()

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Message-Id: <20210329195255.v2.4.Ifcf1deaa372eba7eeb4f8eb516c5d15b77a657a9@changeid>
Date:   Mon, 29 Mar 2021 19:53:35 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Sam Ravnborg <sam@...nborg.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        robdclark@...omium.org,
        Stanislav Lisovskiy <stanislav.lisovskiy@...el.com>,
        linux-arm-msm@...r.kernel.org, Steev Klimaszewski <steev@...i.org>,
        Linus W <linus.walleij@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Robert Foss <robert.foss@...aro.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 04/14] drm/bridge: ti-sn65dsi86: Reorder remove()

Let's make the remove() function strictly the reverse of the probe()
function so it's easier to reason about.

NOTES:
- The MIPI calls probably belong in detach() but will be moved in a
  separate patch.
- The cached EDID freeing isn't actually part of probe but needs to be
  in remove to avoid orphaning memory until better handling of the
  EDID happens.

This patch was created by code inspection and should move us closer to
a proper remove.

Signed-off-by: Douglas Anderson <dianders@...omium.org>
---

(no changes since v1)

 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 76f43af6735d..c006678c9921 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -1315,20 +1315,21 @@ static int ti_sn_bridge_remove(struct i2c_client *client)
 	if (!pdata)
 		return -EINVAL;
 
-	kfree(pdata->edid);
-	ti_sn_debugfs_remove(pdata);
-
-	of_node_put(pdata->host_node);
-
-	pm_runtime_disable(pdata->dev);
-
 	if (pdata->dsi) {
 		mipi_dsi_detach(pdata->dsi);
 		mipi_dsi_device_unregister(pdata->dsi);
 	}
 
+	kfree(pdata->edid);
+
+	ti_sn_debugfs_remove(pdata);
+
 	drm_bridge_remove(&pdata->bridge);
 
+	pm_runtime_disable(pdata->dev);
+
+	of_node_put(pdata->host_node);
+
 	return 0;
 }
 
-- 
2.31.0.291.g576ba9dcdaf-goog