tree 934e58355313148ac212c9cc2e51663c535976d8
parent 251eb40f5ccd07a905633a816fbf8f2b6b25cced
author Dave Anderson <anderson@redhat.com> 1239658786 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1239660269 -0700

hfs: fix memory leak when unmounting

When an HFS filesystem is unmounted, it leaks a 2-page bitmap.  Also,
under extreme memory pressure, it's possible that hfs_releasepage() may
use a tree pointer that has not been initialized, and if so, the release
request should just be rejected.

[akpm@linux-foundation.org: free_pages(0) is legal, remove obvious comment]
Signed-off-by: Dave Anderson <anderson@redhat.com>
Tested-by: Eugene Teo <eugeneteo@kernel.sg>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>