mm: fix missing page table unmap for stack guard page failure case
authorLinus Torvalds <torvalds@linux-foundation.org>
Fri, 13 Aug 2010 16:24:04 +0000 (09:24 -0700)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 13 Aug 2010 20:20:27 +0000 (13:20 -0700)
commitab832422673d1774c4ce3941f2ac87743d73bded
tree52c7a9fa6cef2e63be7777dd9a0204f0d4b557d5
parent7e281afe24330aeea86113ac241eabdac8ba2311
mm: fix missing page table unmap for stack guard page failure case

commit 5528f9132cf65d4d892bcbc5684c61e7822b21e9 upstream.

.. which didn't show up in my tests because it's a no-op on x86-64 and
most other architectures.  But we enter the function with the last-level
page table mapped, and should unmap it at exit.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
mm/memory.c