[PATCH AUTOSEL 4.19 52/83] scsi: ufs: Fix system suspend status

Sasha Levin
2019-02-13T02:52:36Z

From: Stanley Chu <stanley.chu@mediatek.com>

[ Upstream commit ce9e7bce43526626f7cffe2e657953997870197e ]

hba->is_sys_suspended is set after successful system suspend but
not clear after successful system resume.

According to current behavior, hba->is_sys_suspended will not be set if
host is runtime-suspended but not system-suspended. Thus we shall aligh the
same policy: clear this flag even if host remains runtime-suspended after
ufshcd_system_resume is successfully returned.

Simply fix this flag to correct host status logs.

Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/ufs/ufshcd.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 12ddb5928a73..6e80dfe4fa97 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7768,6 +7768,8 @@ int ufshcd_system_resume(struct ufs_hba *hba)
trace_ufshcd_system_resume(dev_name(hba->dev), ret,
ktime_to_us(ktime_sub(ktime_get(), start)),
hba->curr_dev_pwr_mode, hba->uic_link_state);
+ if (!ret)
+ hba->is_sys_suspended = false;
return ret;
}
EXPORT_SYMBOL(ufshcd_system_resume);
--
2.19.1