On 11/8/20 9:30 AM, Zhang Qilong wrote:
> pm_runtime_get_sync() will increment pm usage at first and it
> will resume the device later. If runtime of the device has
> error or device is in inaccessible state(or other error state),
> resume operation will fail. If we do not call put operation to
> decrease the reference, it will result in reference leak in
> the two function(flexcan_get_berr_counter and flexcan_open).
> Moreover, this device cannot enter the idle state and always
> stay busy or other non-idle state later. So we should fix it
> through adding pm_runtime_put_noidle.
>
> Fixes: ca10989632d88 ("can: flexcan: implement can Runtime PM")
> Signed-off-by: Zhang Qilong <zhangqilong3@xxxxxxxxxx>
> ---
> Changelog:
> v2
> - removed empty lines between tags.
> ---
Applied to linux-can/testing.
Tnx,
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Embedded Linux | https://www.pengutronix.de |
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