tree 0da1db7d273752ad5281db415e9245f3f3a63383
parent 7dd5d34c6c2da04e8cd0732e08b33cd3359e4bae
author NeilBrown <neilb@suse.de> 1136535640 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1136565247 -0800

[PATCH] md: define and use safe_put_page for md

md sometimes call put_page on NULL pointers (treating it like kfree).  This is
not safe, so define and use a 'safe_put_page' which checks for NULL.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>