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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 3d443dd29a1db7efa587a4bb0c06a497e13ca9e4
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2026010518-overflow-headgear-2f02@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

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

>From 3d443dd29a1db7efa587a4bb0c06a497e13ca9e4 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Sat, 1 Nov 2025 11:20:00 -0700
Subject: [PATCH] mm/damon/tests/core-kunit: handle alloc failures on
 damon_test_merge_two()

damon_test_merge_two() is assuming all dynamic memory allocation in it
will succeed.  Those are indeed likely in the real use cases since those
allocations are too small to fail, but theoretically those could fail.  In
the case, inappropriate memory access can happen.  Fix it by appropriately
cleanup pre-allocated memory and skip the execution of the remaining tests
in the failure cases.

Link: https://lkml.kernel.org/r/20251101182021.74868-7-sj@kernel.org
Fixes: 17ccae8bb5c9 ("mm/damon: add kunit tests")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: <stable@vger.kernel.org>	[5.15+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h
index f5f3152cb8df..e8219fd23318 100644
--- a/mm/damon/tests/core-kunit.h
+++ b/mm/damon/tests/core-kunit.h
@@ -188,11 +188,21 @@ static void damon_test_merge_two(struct kunit *test)
 	int i;
 
 	t = damon_new_target();
+	if (!t)
+		kunit_skip(test, "target alloc fail");
 	r = damon_new_region(0, 100);
+	if (!r) {
+		damon_free_target(t);
+		kunit_skip(test, "region alloc fail");
+	}
 	r->nr_accesses = 10;
 	r->nr_accesses_bp = 100000;
 	damon_add_region(r, t);
 	r2 = damon_new_region(100, 300);
+	if (!r2) {
+		damon_free_target(t);
+		kunit_skip(test, "second region alloc fail");
+	}
 	r2->nr_accesses = 20;
 	r2->nr_accesses_bp = 200000;
 	damon_add_region(r2, t);



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Date: Mon, 05 Jan 2026 12:20:30 +0100
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Subject: Re: [PATCH v3] drm/bridge: synopsys: dw-dp: fix error paths of
 dw_dp_bind
Cc: <stable@vger.kernel.org>, "Andrzej Hajda" <andrzej.hajda@intel.com>,
 "Neil Armstrong" <neil.armstrong@linaro.org>, "Robert Foss"
 <rfoss@kernel.org>, "Laurent Pinchart" <Laurent.pinchart@ideasonboard.com>,
 "Jonas Karlman" <jonas@kwiboo.se>, "Jernej Skrabec"
 <jernej.skrabec@gmail.com>, "Maarten Lankhorst"
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To: "Osama Abdelkader" <osama.abdelkader@gmail.com>, "Andy Yan"
 <andy.yan@rock-chips.com>
From: "Luca Ceresoli" <luca.ceresoli@bootlin.com>
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Hello Osama,

On Fri Jan 2, 2026 at 4:55 PM CET, Osama Abdelkader wrote:
> Fix several issues in dw_dp_bind() error handling:
>
> 1. Missing return after drm_bridge_attach() failure - the function
>    continued execution instead of returning an error.
>
> 2. Resource leak: drm_dp_aux_register() is not a devm function, so
>    drm_dp_aux_unregister() must be called on all error paths after
>    aux registration succeeds. This affects errors from:
>    - drm_bridge_attach()
>    - phy_init()
>    - devm_add_action_or_reset()
>    - platform_get_irq()
>    - devm_request_threaded_irq()
>
> 3. Bug fix: platform_get_irq() returns the IRQ number or a negative
>    error code, but the error path was returning ERR_PTR(ret) instead
>    of ERR_PTR(dp->irq).
>
> Use a goto label for cleanup to ensure consistent error handling.
>
> Fixes: 86eecc3a9c2e ("drm/bridge: synopsys: Add DW DPTX Controller suppor=
t library")
> Cc: stable@vger.kernel.org
>
> Signed-off-by: Osama Abdelkader <osama.abdelkader@gmail.com>

Thank you for the improvements!

Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

Luca

--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com


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Subject: FAILED: patch "[PATCH] m