FAILED: patch "[PATCH] scsi: ufs: core: Add ufshcd_update_evt_hist() for UFS suspend" failed to apply to 6.6-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x c9f36f04a8a2725172cdf2b5e32363e4addcb14c
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2025122946-attic-proofread-96f2@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From c9f36f04a8a2725172cdf2b5e32363e4addcb14c Mon Sep 17 00:00:00 2001
From: Seunghwan Baek <sh8267.baek@samsung.com>
Date: Wed, 10 Dec 2025 15:38:54 +0900
Subject: [PATCH] scsi: ufs: core: Add ufshcd_update_evt_hist() for UFS suspend
 error

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>

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 80c0b49f30b0..0babb7035200 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -10359,7 +10359,7 @@ static int ufshcd_suspend(struct ufs_hba *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;
@@ -10371,6 +10371,9 @@ static int ufshcd_suspend(struct ufs_hba *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;
 }