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authorSasha Levin <levinsasha928@gmail.com>2012-04-26 03:01:53 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-04-26 08:26:34 +0400
commit6e8b09eaf268bceac0c62e389b4bc0cb83dfb8e5 (patch)
tree8b284da8a79355ef631c8c418c369fd1ec83b251 /drivers/platform
parentf2a9ef880763d7fbd657a3af646e132a90d70d34 (diff)
downloadlinux-6e8b09eaf268bceac0c62e389b4bc0cb83dfb8e5.tar.xz
mm: fix NULL ptr dereference in move_pages
Commit 3268c63 ("mm: fix move/migrate_pages() race on task struct") has added an odd construct where 'mm' is checked for being NULL, and if it is, it would get dereferenced anyways by mput()ing it. Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hugh Dickins <hughd@google.com> Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/platform')
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