[SCSI] sd: Add error handling during flushing caches

[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / scsi_pm.c

diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index 4c5aabe21755cb82450876666145f1f2add7ad1f..af4c050ce6e4e96179f586aae4c54690229b9705 100644 (file)
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -54,7 +54,8 @@ scsi_bus_suspend_common(struct device *dev, int (*cb)(struct device *))
                /*
                 * All the high-level SCSI drivers that implement runtime
                 * PM treat runtime suspend, system suspend, and system
-                * hibernate identically.
+                * hibernate nearly identically. In all cases the requirements
+                * for runtime suspension are stricter.
                 */
                if (pm_runtime_suspended(dev))
                        return 0;