Description: hfsplus: fix NULL dereference in hfsplus_lookup()
References:
 https://bugzilla.kernel.org/show_bug.cgi?id=200297
 https://www.spinics.net/lists/linux-fsdevel/msg130021.html
Notes:
Bugs:
upstream: released (4.19-rc1) [a7ec7a4193a2eb3b5341243fc0b621c1ac9e4ec4]
4.9-upstream-stable: released (4.9.127) [1cedd72d0f688b9c169836649ac9ec07a3c601d6]
3.16-upstream-stable: released (3.16.58) [hfsplus-fix-null-dereference-in-hfsplus_lookup.patch]
sid: released (4.18.8-1)
4.9-stretch-security: released (4.9.110-3+deb9u5) [bugfix/all/hfsplus-fix-null-dereference-in-hfsplus_lookup.patch]
3.16-jessie-security: released (3.16.59-1)