> -----邮件原件----- > 发件人: Greg KH [mailto:gregkh@xxxxxxxxxxxxxxxxxxx] > 发送时间: 2022年3月18日 19:57 > 收件人: zhangqilong <zhangqilong3@xxxxxxxxxx> > 抄送: mathias.nyman@xxxxxxxxx; thierry.reding@xxxxxxxxx; > jonathanh@xxxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx; > linux-tegra@xxxxxxxxxxxxxxx > 主题: Re: [PATCH -next] usb: xhci: tegra:Fix PM usage reference leak of > tegra_xusb_unpowergate_partitions > > On Tue, Mar 15, 2022 at 10:56:14AM +0800, zhangqilong wrote: > > pm_runtime_get_sync will increment pm usage counter even it failed. > > Forgetting to putting operation will result in reference leak here. We > > fix it by replacing it with pm_runtime_resume_and_get to keep usage > > counter balanced. > > > > Fixes:1a7426d25fa3 ("usb: xhci: tegra: Unlink power domain devices") > > I do not see this commit id in any tree I know of. Are you sure it is correct? I paste the wrong commit id, It is 41a7426d25fa3 Thanks Zhang > > thanks, > > greg k-h