[PATCH 6.12 202/567] scsi: ufs: core: Add ufshcd_update_evt_hist() for UFS suspend error

Greg Kroah-Hartman
2026-01-06T17:25:28Z

From: Seunghwan Baek <sh8267.baek@samsung.com>

commit c9f36f04a8a2725172cdf2b5e32363e4addcb14c upstream.

If UFS resume fails, the event history is updated in ufshcd_resume(), but
there is no code anywhere to record UFS suspend. Therefore, add code to
record UFS suspend error event history.

Fixes: dd11376b9f1b ("scsi: ufs: Split the drivers/scsi/ufs directory")
Cc: stable@vger.kernel.org
Signed-off-by: Seunghwan Baek <sh8267.baek@samsung.com>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Link: https://patch.msgid.link/20251210063854.1483899-2-sh8267.baek@samsung.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/ufs/core/ufshcd.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -10112,7 +10112,7 @@ static int ufshcd_suspend(struct ufs_hba
ret = ufshcd_setup_clocks(hba, false);
if (ret) {
ufshcd_enable_irq(hba);
- return ret;
+ goto out;
}
if (ufshcd_is_clkgating_allowed(hba)) {
hba->clk_gating.state = CLKS_OFF;
@@ -10124,6 +10124,9 @@ static int ufshcd_suspend(struct ufs_hba
/* Put the host controller in low power mode if possible */
ufshcd_hba_vreg_set_lpm(hba);
ufshcd_pm_qos_update(hba, false);
+out:
+ if (ret)
+ ufshcd_update_evt_hist(hba, UFS_EVT_SUSPEND_ERR, (u32)ret);
return ret;
}