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phy: qualcomm: phy-qcom-qmp: Add of_node_put() before return

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Each iteration of for_each_available_child_of_node() puts the previous
node, but in the case of a return from the middle of the loop, there is
no put, thus causing a memory leak. Hence create a new label,
err_node_put, that puts the previous node (child) before returning the
required value. Also include the statement pm_runtime_disable() under
this label in order to avoid repetition among mid-loop return
conditions. Edit the mid-loop return statements to instead go to this
new label err_node_put.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Nishka Dasgupta 2019-08-08 12:59:37 +05:30 committed by Kishon Vijay Abraham I
parent e6839c31a6
commit be0345b2cc
1 changed files with 7 additions and 4 deletions
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11
drivers/phy/qualcomm/phy-qcom-qmp.c
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@ -2093,8 +2093,7 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev)
if (ret) {
dev_err(dev, "failed to create lane%d phy, %d\n",
id, ret);
pm_runtime_disable(dev);
return ret;
goto err_node_put;
}
/*
@ -2105,8 +2104,7 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev)
if (ret) {
dev_err(qmp->dev,
"failed to register pipe clock source\n");
pm_runtime_disable(dev);
return ret;
goto err_node_put;
}
id++;
}
@ -2118,6 +2116,11 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev)
pm_runtime_disable(dev);
return PTR_ERR_OR_ZERO(phy_provider);
err_node_put:
pm_runtime_disable(dev);
of_node_put(child);
return ret;
}
static struct platform_driver qcom_qmp_phy_driver = {