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[v7,18/23] ata: libata-core: Do not poweroff runtime suspended ports

Message ID 20230926081507.69346-19-dlemoal@kernel.org
State New
Headers show
Series Fix libata suspend/resume handling and code cleanup | expand

Commit Message

Damien Le Moal Sept. 26, 2023, 8:15 a.m. UTC 
When powering off, there is no need to suspend a port that has already
been runtime suspended. Skip the EH PM request in ata_port_pm_poweroff()
in this case.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
---
 drivers/ata/libata-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 6773a1e52dad..df6ed386e6fc 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5215,7 +5215,8 @@  static int ata_port_pm_freeze(struct device *dev)
 
 static int ata_port_pm_poweroff(struct device *dev)
 {
-	ata_port_suspend(to_ata_port(dev), PMSG_HIBERNATE, false);
+	if (!pm_runtime_suspended(dev))
+		ata_port_suspend(to_ata_port(dev), PMSG_HIBERNATE, false);
 	return 0;
 }