[merged mm-hotfixes-stable] mm-zswap-fix-error-pointer-free-in-zswap_cpu_comp_prepare.patch removed from -mm tree

[merged mm-hotfixes-stable] mm-zswap-fix-error-pointer-free-in-zswap_cpu_comp_prepare.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/zswap: fix error pointer free in zswap_cpu_comp_prepare()
has been removed from the -mm tree.  Its filename was
     mm-zswap-fix-error-pointer-free-in-zswap_cpu_comp_prepare.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Pavel Butsykin <pbutsykin@cloudlinux.com>
Subject: mm/zswap: fix error pointer free in zswap_cpu_comp_prepare()
Date: Wed, 31 Dec 2025 11:46:38 +0400

crypto_alloc_acomp_node() may return ERR_PTR(), but the fail path checks
only for NULL and can pass an error pointer to crypto_free_acomp().  Use
IS_ERR_OR_NULL() to only free valid acomp instances.

Link: https://lkml.kernel.org/r/20251231074638.2564302-1-pbutsykin@cloudlinux.com
Fixes: 779b9955f643 ("mm: zswap: move allocations during CPU init outside the lock")
Signed-off-by: Pavel Butsykin <pbutsykin@cloudlinux.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Acked-by: Yosry Ahmed <yosry.ahmed@linux.dev>
Acked-by: Nhat Pham <nphamcs@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/zswap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/zswap.c~mm-zswap-fix-error-pointer-free-in-zswap_cpu_comp_prepare
+++ a/mm/zswap.c
@@ -787,7 +787,7 @@ static int zswap_cpu_comp_prepare(unsign
 	return 0;
 
 fail:
-	if (acomp)
+	if (!IS_ERR_OR_NULL(acomp))
 		crypto_free_acomp(acomp);
 	kfree(buffer);
 	return ret;
_

Patches currently in -mm which might be from pbutsykin@cloudlinux.com are