“e6b23cfd9b0b4196085dc6e9ab7d6a9cabb2e743”上不存在“fs/git@gitcode.net:openeuler/kernel.git”
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由 Rafael J. Wysocki 提交于
stable inclusion from stable-5.10.22 commit c6e5800bdf7041803de7aaee73534b0885dbc018 bugzilla: 50796 -------------------------------- commit 44cc89f7 upstream. Because the PM-runtime status of the device is not updated in __rpm_callback(), attempts to suspend the suppliers of the given device triggered by rpm_put_suppliers() called by it may fail. Fix this by making __rpm_callback() update the device's status to RPM_SUSPENDED before calling rpm_put_suppliers() if the current status of the device is RPM_SUSPENDING and the callback just invoked by it has returned 0 (success). While at it, modify the code in __rpm_callback() to always check the device's PM-runtime status under its PM lock. Link: https://lore.kernel.org/linux-pm/CAPDyKFqm06KDw_p8WXsM4dijDbho4bb6T4k50UqqvR1_COsp8g@mail.gmail.com/ Fixes: 21d5c57b ("PM / runtime: Use device links") Reported-by: NElaine Zhang <zhangqing@rock-chips.com> Diagnosed-by: NUlf Hansson <ulf.hansson@linaro.org> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: NElaine Zhang <zhangiqng@rock-chips.com> Reviewed-by: NUlf Hansson <ulf.hansson@linaro.org> Cc: 4.10+ <stable@vger.kernel.org> # 4.10+ Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NChen Jun <chenjun102@huawei.com> Acked-by: N Weilong Chen <chenweilong@huawei.com> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
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