mm: vma_adjust: remove superfluous check for next not NULL

If next would be NULL we couldn't reach such code path.

Link: http://lkml.kernel.org/r/1474309513-20313-2-git-send-email-aarcange@redhat.com
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Jan Vorlicek <janvorli@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/mmap.c b/mm/mmap.c
index e53637f..aa29d43 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -706,7 +706,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
                         * If next doesn't have anon_vma, import from vma after
                         * next, if the vma overlaps with it.
                         */
                         * If next doesn't have anon_vma, import from vma after
                         * next, if the vma overlaps with it.
                         */

-                       if (remove_next == 2 && next && !next->anon_vma)
+                       if (remove_next == 2 && !next->anon_vma)

                                exporter = next->vm_next;
 
                } else if (end > next->vm_start) {
                                exporter = next->vm_next;
 
                } else if (end > next->vm_start) {