From: Alexey Klimov <klimov.linux@gmail.com>
Date: Thu, 14 Jan 2016 23:18:24 +0000 (-0800)
Subject: mm/mlock.c: drop unneeded initialization in munlock_vma_pages_range()
X-Git-Tag: v4.5-rc1~94^2~84
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ab7a5af7fd9cc38576b432690367bbabc8da99b2;p=karo-tx-linux.git

mm/mlock.c: drop unneeded initialization in munlock_vma_pages_range()

Before usage page pointer initialized by NULL is reinitialized by
follow_page_mask().  Drop useless init of page pointer in the beginning
of loop.

Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/mlock.c b/mm/mlock.c
index 339d9e0949b6..9cb87cbc4071 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -425,7 +425,7 @@ void munlock_vma_pages_range(struct vm_area_struct *vma,
 	vma->vm_flags &= VM_LOCKED_CLEAR_MASK;
 
 	while (start < end) {
-		struct page *page = NULL;
+		struct page *page;
 		unsigned int page_mask;
 		unsigned long page_increm;
 		struct pagevec pvec;