From: Yangtao Li <tiny.windzz@gmail.com>
To: cw00.choi@samsung.com, myungjoo.ham@samsung.com,
kyungmin.park@samsung.com, kgene@kernel.org, krzk@kernel.org,
linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: Yangtao Li <tiny.windzz@gmail.com>
Subject: [PATCH 1/2] PM / devfreq: rk3399_dmc: Add missing devfreq_event_disable_edev
Date: Sat, 21 Dec 2019 18:18:54 +0000 [thread overview]
Message-ID: <20191221181855.31380-1-tiny.windzz@gmail.com> (raw)
The probe process may fail, but the devfreq event device remains
enabled. Call devfreq_event_disable_edev on the error return path.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
---
drivers/devfreq/rk3399_dmc.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c
index 2f1027c5b647..4f4e7c041888 100644
--- a/drivers/devfreq/rk3399_dmc.c
+++ b/drivers/devfreq/rk3399_dmc.c
@@ -364,7 +364,8 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
if (res.a0) {
dev_err(dev, "Failed to set dram param: %ld\n",
res.a0);
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_disable_edev;
}
}
}
@@ -373,8 +374,10 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
if (node) {
data->regmap_pmu = syscon_node_to_regmap(node);
of_node_put(node);
- if (IS_ERR(data->regmap_pmu))
- return PTR_ERR(data->regmap_pmu);
+ if (IS_ERR(data->regmap_pmu)) {
+ ret = PTR_ERR(data->regmap_pmu);
+ goto err_disable_edev;
+ }
}
regmap_read(data->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val);
@@ -392,7 +395,8 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
data->odt_dis_freq = data->timing.lpddr4_odt_dis_freq;
break;
default:
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_disable_edev;
};
arm_smccc_smc(ROCKCHIP_SIP_DRAM_FREQ, 0, 0,
@@ -426,7 +430,8 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
*/
if (dev_pm_opp_of_add_table(dev)) {
dev_err(dev, "Invalid operating-points in device tree.\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_disable_edev;
}
of_property_read_u32(np, "upthreshold",
@@ -464,6 +469,8 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
return 0;
+err_disable_edev:
+ devfreq_event_disable_edev(data->edev);
err_free_opp:
dev_pm_opp_of_remove_table(&pdev->dev);
return ret;
--
2.17.1
next reply other threads:[~2019-12-21 18:19 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-21 18:18 Yangtao Li [this message]
2019-12-21 18:18 ` [PATCH 2/2] PM / devfreq: exynos-bus: add missing exynos_bus_disable_edev in exynos_bus_profile_init Yangtao Li
2019-12-22 17:01 ` Chanwoo Choi
2019-12-22 17:43 ` Frank Lee
2019-12-22 17:47 ` Frank Lee
2019-12-22 16:49 ` [PATCH 1/2] PM / devfreq: rk3399_dmc: Add missing devfreq_event_disable_edev Chanwoo Choi
2019-12-22 17:42 ` Frank Lee
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