Commit 4b085736 authored by Damien Le Moal's avatar Damien Le Moal Committed by Niklas Cassel
Browse files

ata: libata-core: Do not try to set sleeping devices to standby 



In ata ata_dev_power_set_standby(), check that the target device is not
sleeping. If it is, there is no need to do anything.

Fixes: aa3998db ("ata: libata-scsi: Disable scsi device manage_system_start_stop")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarDamien Le Moal <dlemoal@kernel.org>
Signed-off-by: default avatarNiklas Cassel <cassel@kernel.org>
parent 51af8f25

drivers/ata/libata-core.c

+4 −0
Original line number Diff line number Diff line
@@ -2017,6 +2017,10 @@ void ata_dev_power_set_standby(struct ata_device *dev) 
	struct ata_taskfile tf;

	unsigned int err_mask;



	/* If the device is already sleeping, do nothing. */

	if (dev->flags & ATA_DFLAG_SLEEPING)

		return;



	/*

	 * Some odd clown BIOSes issue spindown on power off (ACPI S4 or S5)

	 * causing some drives to spin up and down again. For these, do nothing