On Monday, June 21, 2010, Alan Stern wrote: > This patch (as1402) fixes a bug in the PCI core. When a device is > about to be suspended, the core does a runtime resume because the > device settings may need to be reconfigured. But calling > pm_runtime_resume() is not the right way to do this, because it does > nothing to prevent the device from autosuspending immediately > afterward. The core needs to use pm_runtime_get_sync() and > pm_runtime_put_sync() instead. No, it doesn't need to, becuase the PM core has already called pm_runtime_get_noresume() for the device (look into drivers/base/power/main.c:dpm_prepare(), please). The patch is not necessary. > Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > CC: Rafael J. Wysocki <rjw@xxxxxxx> Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
