From: Miaohe Lin <linmiaohe@xxxxxxxxxx> Subject: mm/hmm.c: remove unneeded local variable ret The local variable ret is always 0. Remove it to make code more tight. Link: https://lkml.kernel.org/r/20220125124833.39718-1-linmiaohe@xxxxxxxxxx Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx> Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/hmm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/hmm.c~mm-hmmc-remove-unneeded-local-variable-ret +++ a/mm/hmm.c @@ -417,7 +417,6 @@ static int hmm_vma_walk_pud(pud_t *pudp, struct hmm_range *range = hmm_vma_walk->range; unsigned long addr = start; pud_t pud; - int ret = 0; spinlock_t *ptl = pud_trans_huge_lock(pudp, walk->vma); if (!ptl) @@ -466,7 +465,7 @@ static int hmm_vma_walk_pud(pud_t *pudp, out_unlock: spin_unlock(ptl); - return ret; + return 0; } #else #define hmm_vma_walk_pud NULL _
