Commit 0f66f03f authored Oct 10, 2013 by Sujit Reddy Thumma

scsi: put runtime PM reference for well-known logical units



Some well-known logical units might not have scsi upper-layer
drivers. In such cases, the runtime PM reference count increased
during device enumeration will not be decreased, causing the
parent device (host) to always be on even during idle.

Change-Id: I458007425231e5e245cd39494c9fb42a8d4cb9cd
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>

parent cc14c8db

drivers/scsi/scsi_sysfs.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -947,6 +947,13 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
		}
		}

		/*
		* put runtime pm reference for well-known logical units,
		* drivers are expected to _get_* again during probe.
		*/
		if (scsi_is_wlun(sdev->lun))
		scsi_autopm_put_device(sdev);

		return error;
		}