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i2c: rcar: fix PM ref counts in probe error paths

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[ Upstream commit 3fe2ec59db ]

We have to take care of ID_P_PM_BLOCKED when bailing out during probe.

Fixes: 7ee24eb508 ("i2c: rcar: disable PM in multi-master mode")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kuninori Morimoto 2022-05-20 11:54:21 +02:00 committed by Greg Kroah-Hartman
parent c06cfe582f
commit b52e192ffd
1 changed files with 9 additions and 6 deletions
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15
drivers/i2c/busses/i2c-rcar.c
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@ -1070,8 +1070,10 @@ static int rcar_i2c_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
ret = rcar_i2c_clock_calculate(priv);
if (ret < 0)
goto out_pm_put;
if (ret < 0) {
pm_runtime_put(dev);
goto out_pm_disable;
}
rcar_i2c_write(priv, ICSAR, 0); /* Gen2: must be 0 if not using slave */
@ -1100,19 +1102,19 @@ static int rcar_i2c_probe(struct platform_device *pdev)
ret = platform_get_irq(pdev, 0);
if (ret < 0)
goto out_pm_disable;
goto out_pm_put;
priv->irq = ret;
ret = devm_request_irq(dev, priv->irq, irqhandler, irqflags, dev_name(dev), priv);
if (ret < 0) {
dev_err(dev, "cannot get irq %d\n", priv->irq);
goto out_pm_disable;
goto out_pm_put;
}
platform_set_drvdata(pdev, priv);
ret = i2c_add_numbered_adapter(adap);
if (ret < 0)
goto out_pm_disable;
goto out_pm_put;
if (priv->flags & ID_P_HOST_NOTIFY) {
priv->host_notify_client = i2c_new_slave_host_notify_device(adap);
@ -1129,7 +1131,8 @@ static int rcar_i2c_probe(struct platform_device *pdev)
out_del_device:
i2c_del_adapter(&priv->adap);
out_pm_put:
pm_runtime_put(dev);
if (priv->flags & ID_P_PM_BLOCKED)
pm_runtime_put(dev);
out_pm_disable:
pm_runtime_disable(dev);
return ret;