From d9282cb66353be502aae09aae75d05a6863eb979 Mon Sep 17 00:00:00 2001
From: Pan Xinhui <xinhuix.pan@intel.com>
Date: Wed, 9 Sep 2015 15:37:05 -0700
Subject: [PATCH] lib/bitmap.c: fix a special string handling bug in
 __bitmap_parselist

If string end with '-', for exapmle, bitmap_parselist("1,0-",&mask,
nmaskbits), It is not in a valid pattern, so add a check after loop.
Return -EINVAL on such condition.

Signed-off-by: Pan Xinhui <xinhuix.pan@intel.com>
Cc: Yury Norov <yury.norov@gmail.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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