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staging: mt7621-pinctrl: Add of_node_put() before return 

Each iteration of for_each_compatible_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. Add an of_node_put before the return.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Link: https://lore.kernel.org/r/20190716055908.3183-1-nishkadg.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nishka Dasgupta 2019-07-16 11:29:08 +05:30 committed by Greg Kroah-Hartman
parent 2125a44149
commit c4011dde24
1 changed files with 4 additions and 1 deletions
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5
drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
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@ -358,12 +358,15 @@ static int rt2880_pinmux_probe(struct platform_device *pdev)
gpiobase = of_get_property(np, "ralink,gpio-base", NULL); gpiobase = of_get_property(np, "ralink,gpio-base", NULL);
if (!ngpio || !gpiobase) { if (!ngpio || !gpiobase) {
dev_err(&pdev->dev, "failed to load chip info\n"); dev_err(&pdev->dev, "failed to load chip info\n");
of_node_put(np);
return -EINVAL; return -EINVAL;
} }
range = devm_kzalloc(p->dev, sizeof(*range), GFP_KERNEL); range = devm_kzalloc(p->dev, sizeof(*range), GFP_KERNEL);
if (!range) if (!range) {
of_node_put(np);
return -ENOMEM; return -ENOMEM;
}
range->name = "pio"; range->name = "pio";
range->npins = __be32_to_cpu(*ngpio); range->npins = __be32_to_cpu(*ngpio);
range->base = __be32_to_cpu(*gpiobase); range->base = __be32_to_cpu(*gpiobase);