linux-kernel - [PATCH v5 01/20] drm/panel: panel-simple: Add missing pm_runtime

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210423095743.v5.1.I9e6af2529d6c61e5daf86a15a1211121c5223b9a@changeid>
Date:   Fri, 23 Apr 2021 09:58:47 -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>, Wolfram Sang <wsa@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, robdclark@...omium.org,
        Stanislav Lisovskiy <stanislav.lisovskiy@...el.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Steev Klimaszewski <steev@...i.org>,
        Linus W <linus.walleij@...aro.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        linux-i2c@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        dri-devel@...ts.freedesktop.org,
        Douglas Anderson <dianders@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Thierry Reding <thierry.reding@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v5 01/20] drm/panel: panel-simple: Add missing pm_runtime_disable() calls

In commit 3235b0f20a0a ("drm/panel: panel-simple: Use runtime pm to
avoid excessive unprepare / prepare") we started using pm_runtime, but
my patch neglected to add the proper pm_runtime_disable(). Doh! Add
them now.

Fixes: 3235b0f20a0a ("drm/panel: panel-simple: Use runtime pm to avoid excessive unprepare / prepare")
Reported-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Douglas Anderson <dianders@...omium.org>
---

Changes in v5:
- Missing pm_runtime_disable() patch new for v5.

 drivers/gpu/drm/panel/panel-simple.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 6b22872b3281..9746eda6f675 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -797,12 +797,14 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
 
 	err = drm_panel_of_backlight(&panel->base);
 	if (err)
-		goto free_ddc;
+		goto disable_pm_runtime;
 
 	drm_panel_add(&panel->base);
 
 	return 0;
 
+disable_pm_runtime:
+	pm_runtime_disable(dev);
 free_ddc:
 	if (panel->ddc)
 		put_device(&panel->ddc->dev);
@@ -818,6 +820,7 @@ static int panel_simple_remove(struct device *dev)
 	drm_panel_disable(&panel->base);
 	drm_panel_unprepare(&panel->base);
 
+	pm_runtime_disable(dev);
 	if (panel->ddc)
 		put_device(&panel->ddc->dev);
 
-- 
2.31.1.498.g6c1eba8ee3d-goog