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Message-Id: <20200411200632.4045-1-peron.clem@gmail.com>
Date: Sat, 11 Apr 2020 22:06:31 +0200
From: Clément Péron <peron.clem@...il.com>
To: Rob Herring <robh@...nel.org>,
Tomeu Vizoso <tomeu.vizoso@...labora.com>,
Steven Price <steven.price@....com>,
Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>,
Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
Stephen Boyd <sboyd@...nel.org>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
Clément Péron <peron.clem@...il.com>
Subject: [PATCH 1/2] drm/panfrost: missing remove opp table in case of failure
In case of failure we need to remove OPP table.
Use Linux classic error handling with goto usage.
Signed-off-by: Clément Péron <peron.clem@...il.com>
---
drivers/gpu/drm/panfrost/panfrost_devfreq.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
index 413987038fbf..62541f4edd81 100644
--- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c
+++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c
@@ -90,8 +90,11 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
cur_freq = clk_get_rate(pfdev->clock);
opp = devfreq_recommended_opp(dev, &cur_freq, 0);
- if (IS_ERR(opp))
- return PTR_ERR(opp);
+ if (IS_ERR(opp)) {
+ DRM_DEV_ERROR(dev, "Failed to set recommended OPP\n");
+ ret = PTR_ERR(opp);
+ goto err_opp;
+ }
panfrost_devfreq_profile.initial_freq = cur_freq;
dev_pm_opp_put(opp);
@@ -100,8 +103,8 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
DEVFREQ_GOV_SIMPLE_ONDEMAND, NULL);
if (IS_ERR(devfreq)) {
DRM_DEV_ERROR(dev, "Couldn't initialize GPU devfreq\n");
- dev_pm_opp_of_remove_table(dev);
- return PTR_ERR(devfreq);
+ ret = PTR_ERR(devfreq);
+ goto err_opp;
}
pfdev->devfreq.devfreq = devfreq;
@@ -112,6 +115,11 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
pfdev->devfreq.cooling = cooling;
return 0;
+
+err_opp:
+ dev_pm_opp_of_remove_table(dev);
+
+ return ret;
}
void panfrost_devfreq_fini(struct panfrost_device *pfdev)
--
2.20.1
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