From: David Howells <dhowells@redhat.com>
Date: Thu, 8 Jan 2009 12:04:46 +0000 (+0000)
Subject: NOMMU: Fix cleanup handling in ramfs_nommu_get_umapped_area()
X-Git-Tag: v2.6.29-rc1~22^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0e8f989a253b1bf85ea1c8d7987d67c054f4af91;p=pandora-kernel.git

NOMMU: Fix cleanup handling in ramfs_nommu_get_umapped_area()

Fix cleanup handling in ramfs_nommu_get_umapped_area() by only freeing the
number of pages that find_get_pages() said it had returned (nr) rather than
attempting to free the number of pages we asked for (lpages) - thus avoiding
the situation whereby put_page() may be handed NULL pointers if
find_get_pages() returned fewer pages that were requested.

Also avoid a warning about nr being uninitialised and the need for an
if-statement in the cleanup path by using appropriate gotos.

Signed-off-by: David Howells <dhowells@redhat.com>
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