From: Keoseong Park keosung.park@samsung.com
[ Upstream commit 1a7edd041f2d252f251523ba3f2eaead076a8f8d ]
Even when urgent BKOPS fails, the consumer will get stuck in runtime suspend status. Like commit 1a5665fc8d7a ("scsi: ufs: core: WLUN suspend SSU/enter hibern8 fail recovery"), trigger the error handler and return -EBUSY to break the suspend.
Fixes: b294ff3e3449 ("scsi: ufs: core: Enable power management for wlun") Signed-off-by: Keoseong Park keosung.park@samsung.com Link: https://lore.kernel.org/r/20230425031721epcms2p5d4de65616478c967d466626e20c4... 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/ufs/core/ufshcd.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 70b112038792a..8ac2945e849f4 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -9428,8 +9428,16 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) * that performance might be impacted. */ ret = ufshcd_urgent_bkops(hba); - if (ret) + if (ret) { + /* + * If return err in suspend flow, IO will hang. + * Trigger error handler and break suspend for + * error recovery. + */ + ufshcd_force_error_recovery(hba); + ret = -EBUSY; goto enable_scaling; + } } else { /* make sure that auto bkops is disabled */ ufshcd_disable_auto_bkops(hba);