From: Carsten Otte <cotte@de.ibm.com>
Date: Mon, 26 Sep 2011 14:40:34 +0000 (+0200)
Subject: [S390] gmap: always up mmap_sem properly
X-Git-Tag: v3.1-rc9~17^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05873df981ca1dd32f398e7b4e19864de907e064;p=pandora-kernel.git

[S390] gmap: always up mmap_sem properly

If gmap_unmap_segment figures that the segment was not mapped in the
first place, it need to up mmap_sem on exit.

Cc: <stable@kernel.org>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

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