commit 84d96d897671cfb386e722acbefdb3a79e115a8a
author Rasmus Villemoes <linux@rasmusvillemoes.dk> Mon Apr 29 15:08:23 2013 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> Mon Apr 29 15:54:37 2013 -0700
tree 0d7559bf9434ccfd933cfd385ff2c3843e6fd396
parent 4edd7ceff0662afde195da6f6c43e7cbe1ed2dc4

mm: madvise: complete input validation before taking lock

In madvise(), there doesn't seem to be any reason for taking the
&current->mm->mmap_sem before start and len_in have been validated.
Incidentally, this removes the need for the out: label.

[akpm@linux-foundation.org: s/out_plug/out/, per David]
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>