FAILED: patch "[PATCH] dmaengine: idxd: Add missing cleanups in cleanup internals" failed to apply to 5.15-stable tree

The patch below does not apply to the 5.15-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 <[email protected]>.

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-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 61d651572b6c4fe50c7b39a390760f3a910c7ccf
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2025051904-earache-virtuous-e35d@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

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

From 61d651572b6c4fe50c7b39a390760f3a910c7ccf Mon Sep 17 00:00:00 2001
From: Shuai Xue <[email protected]>
Date: Fri, 4 Apr 2025 20:02:13 +0800
Subject: [PATCH] dmaengine: idxd: Add missing cleanups in cleanup internals

The idxd_cleanup_internals() function only decreases the reference count of groups, engines, and wqs but is missing the step to release memory resources.

To fix this, use the cleanup helper to properly release the memory resources.

index a40fb2fd5006..f8129d2d53f1 100644
@@ -407,14 +407,9 @@ static int idxd_setup_groups(struct idxd_device *idxd)
 
 static void idxd_cleanup_internals(struct idxd_device *idxd)
 {
-	int i;
-
-	for (i = 0; i < idxd->max_groups; i++)
-		put_device(group_confdev(idxd->groups[i]));
-	for (i = 0; i < idxd->max_engines; i++)
-		put_device(engine_confdev(idxd->engines[i]));
-	for (i = 0; i < idxd->max_wqs; i++)
-		put_device(wq_confdev(idxd->wqs[i]));
+	idxd_clean_groups(idxd);
+	idxd_clean_engines(idxd);
+	idxd_clean_wqs(idxd);
 	destroy_workqueue(idxd->wq);
 }