Messages in this thread | | | Subject | Re: [PATCH v4] cpuidle: big.LITTLE: fix refcount leak | From | Daniel Lezcano <> | Date | Mon, 10 Dec 2018 18:00:12 +0100 |
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On 10/12/2018 17:26, Yangtao Li wrote: > of_find_node_by_path() acquires a reference to the node > returned by it and that reference needs to be dropped by its caller. > bl_idle_init() doesn't do that, so fix it. > > Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
> --- > changes in v4: > -update tile > -refactor code,suggested by Daniel > --- > drivers/cpuidle/cpuidle-big_little.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c > index db2ede565f1a..b44476a1b7ad 100644 > --- a/drivers/cpuidle/cpuidle-big_little.c > +++ b/drivers/cpuidle/cpuidle-big_little.c > @@ -167,6 +167,7 @@ static int __init bl_idle_init(void) > { > int ret; > struct device_node *root = of_find_node_by_path("/"); > + const struct of_device_id *match_id; > > if (!root) > return -ENODEV; > @@ -174,7 +175,11 @@ static int __init bl_idle_init(void) > /* > * Initialize the driver just for a compliant set of machines > */ > - if (!of_match_node(compatible_machine_match, root)) > + match_id = of_match_node(compatible_machine_match, root); > + > + of_node_put(root); > + > + if (!match_id) > return -ENODEV; > > if (!mcpm_is_available()) >
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