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d742aa152f
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Scott Wood d742aa152f powerpc/booke: Only check for hugetlb in flush if vma != NULL 
And in flush_hugetlb_page(), don't check whether vma is NULL after
we've already dereferenced it.

This was found by Dan using static analysis as described here:
https://lists.ozlabs.org/pipermail/linuxppc-dev/2013-November/113161.html

We currently get away with this because the callers that currently pass
NULL for vma seem to be 32-bit-only (e.g. highmem, and
CONFIG_DEBUG_PGALLOC in pgtable_32.c)  Hugetlb is currently 64-bit only,
so we never saw a NULL vma here.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
2013-11-22 16:57:29 -06:00
..
boot powerpc/85xx: typo in dts: "interupt" (four devices) 2013-11-22 16:57:25 -06:00
configs powerpc: Add pseries_le_defconfig 2013-11-21 09:19:23 +11:00
crypto
include powerpc/8xx: mfspr SPRN_TBRx in lieu of mftb/mftbu is not supported 2013-11-22 16:56:48 -06:00
kernel powerpc/8xx: mfspr SPRN_TBRx in lieu of mftb/mftbu is not supported 2013-11-22 16:56:48 -06:00
kvm Here are the 3.13 KVM changes. There was a lot of work on the PPC 2013-11-15 13:51:36 +09:00
lib powerpc: Add VMX optimised xor for RAID5 2013-10-30 16:02:28 +11:00
math-emu powerpc/math-emu: Fix load/store indexed emulation 2013-08-14 14:59:57 +10:00
mm powerpc/booke: Only check for hugetlb in flush if vma != NULL 2013-11-22 16:57:29 -06:00
net Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-11-12 14:34:19 +09:00
oprofile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-09-06 10:49:42 -07:00
perf powerpc/perf: Fix handling of FAB events 2013-10-03 17:25:38 +10:00
platforms Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-11-22 08:07:11 -08:00
sysdev PCI changes for the v3.13 merge window: 2013-11-14 14:02:00 +09:00
xmon powerpc/xmon: Fix printing of set of CPUs in xmon 2013-09-05 17:29:19 +10:00
Kconfig Kconfig cleanups for v3.13 2013-11-15 14:05:15 -08:00
Kconfig.debug Merge branch 'kconfig-diet' from Dave Hansen 2013-07-04 11:25:51 -07:00
Makefile powerpc/corenet64: compile with CONFIG_E{5,6}500_CPU well 2013-11-22 16:56:33 -06:00
relocs_check.pl Fix warning typo "CONFIG_RELCOATABLE" 2013-05-29 15:11:30 +02:00