PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events
commitf44b799603
upstream. of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. This function only calls of_node_put() in normal path, missing it in error paths. Add missing of_node_put() to avoid refcount leak. Fixes:f262f28c14
("PM / devfreq: event: Add devfreq_event class") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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7cf7ed8f23
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01121e39ef
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@ -514,15 +514,19 @@ static int of_get_devfreq_events(struct device_node *np,
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count = of_get_child_count(events_np);
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desc = devm_kcalloc(dev, count, sizeof(*desc), GFP_KERNEL);
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if (!desc)
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if (!desc) {
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of_node_put(events_np);
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return -ENOMEM;
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}
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info->num_events = count;
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of_id = of_match_device(exynos_ppmu_id_match, dev);
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if (of_id)
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info->ppmu_type = (enum exynos_ppmu_type)of_id->data;
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else
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else {
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of_node_put(events_np);
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return -EINVAL;
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}
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j = 0;
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for_each_child_of_node(events_np, node) {
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