When we get a pointer and check it is non-null, we should not get the pointer
again but should instead use the pointer we got in the first place...
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>