From: Huang Shijie <shijie8@gmail.com>
Date: Wed, 27 Oct 2010 22:34:52 +0000 (-0700)
Subject: kernel/resource.c: handle reinsertion of an already-inserted resource
X-Git-Tag: v2.6.37-rc1~85^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5de1cb2d0f1c1e5475d2bedf65b76828f8cdde22;p=pandora-kernel.git

kernel/resource.c: handle reinsertion of an already-inserted resource

If the same resource is inserted to the resource tree (maybe not on
purpose), a dead loop will be created.  In this situation, The kernel does
not report any warning or error :(

  The command below will show a endless print.
  #cat /proc/iomem

[akpm@linux-foundation.org: add WARN_ON()]
Signed-off-by: Huang Shijie <shijie8@gmail.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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