From: Liam R. Howlett <Liam.Howlett@Oracle.com>
Date: Thu, 4 Feb 2021 19:06:58 +0000 (-0500)
Subject: mm/ksm: Fix error introduced in 3fd77bfa4f25fa
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=de80aba2a12ed08617fbbcc28501cc49f00bda0b;p=users%2Fjedix%2Flinux-maple.git

mm/ksm: Fix error introduced in 3fd77bfa4f25fa

mm may be uninitialized during the first loop.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---

diff --git a/mm/ksm.c b/mm/ksm.c
index 29702f086382b..dd0ccb9e07003 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -975,7 +975,8 @@ static int unmerge_and_remove_all_rmap_items(void)
 	spin_unlock(&ksm_mmlist_lock);
 
 	for (mm_slot = ksm_scan.mm_slot;
-			mm_slot != &ksm_mm_head; mm_slot = ksm_scan.mm_slot, mm = mm_slot->mm) {
+			mm_slot != &ksm_mm_head; mm_slot = ksm_scan.mm_slot) {
+		mm = mm_slot->mm;
 		MA_STATE(mas, &mm->mm_mt, 0, 0);
 
 		mmap_read_lock(mm);