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 Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ 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