+ mm-hmm-fix-uninitialized-use-of-entry-in-hmm_vma_walk_pmd.patch added to -mm tree

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The patch titled
     Subject: mm/hmm: fix uninitialized use of 'entry' in hmm_vma_walk_pmd()
has been added to the -mm tree.  Its filename is
     mm-hmm-fix-uninitialized-use-of-entry-in-hmm_vma_walk_pmd.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/mm-hmm-fix-uninitialized-use-of-entry-in-hmm_vma_walk_pmd.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/mm-hmm-fix-uninitialized-use-of-entry-in-hmm_vma_walk_pmd.patch

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------------------------------------------------------
From: Ralph Campbell <rcampbell@xxxxxxxxxx>
Subject: mm/hmm: fix uninitialized use of 'entry' in hmm_vma_walk_pmd()

The variable 'entry' is used before being initialized in
hmm_vma_walk_pmd().

Link: http://lkml.kernel.org/r/20180122185759.26286-1-jglisse@xxxxxxxxxx
Signed-off-by: Ralph Campbell <rcampbell@xxxxxxxxxx>
Signed-off-by: Jérôme Glisse <jglisse@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/hmm.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff -puN mm/hmm.c~mm-hmm-fix-uninitialized-use-of-entry-in-hmm_vma_walk_pmd mm/hmm.c
--- a/mm/hmm.c~mm-hmm-fix-uninitialized-use-of-entry-in-hmm_vma_walk_pmd
+++ a/mm/hmm.c
@@ -418,7 +418,7 @@ again:
 		}
 
 		if (!pte_present(pte)) {
-			swp_entry_t entry;
+			swp_entry_t entry = pte_to_swp_entry(pte);
 
 			if (!non_swap_entry(entry)) {
 				if (hmm_vma_walk->fault)
@@ -426,8 +426,6 @@ again:
 				continue;
 			}
 
-			entry = pte_to_swp_entry(pte);
-
 			/*
 			 * This is a special swap entry, ignore migration, use
 			 * device and report anything else as error.
_

Patches currently in -mm which might be from rcampbell@xxxxxxxxxx are

mm-hmm-fix-uninitialized-use-of-entry-in-hmm_vma_walk_pmd.patch

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