From: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Date: Mon, 13 Jul 2015 09:32:43 +0000 (+0200)
Subject: parisc: mm: Fix a memory leak related to pmd not attached to the pgd
X-Git-Tag: omap-for-v4.3/fixes-merge-window~217^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4c4ac9a48ac512c6b5a6cca06cfad2ad96e8caaa;p=pandora-kernel.git

parisc: mm: Fix a memory leak related to pmd not attached to the pgd

Commit 0e0da48dee8d ("parisc: mm: don't count preallocated pmds")
introduced a memory leak.

After this commit, the 'return' statement in pmd_free is executed in all
cases. Even for pmd that are not attached to the pgd.  So 'free_pages'
can never be called anymore, leading to a memory leak.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org  # v4.0+
Signed-off-by: Helge Deller <deller@gmx.de>
---

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