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

..

40x_mmu.c

memblock: Remove rmo_size, burry it in arch/powerpc where it belongs

2010-08-05 12:56:08 +10:00

44x_mmu.c

powerpc: Delete __cpuinit usage from all users

2013-07-01 11:10:36 +10:00

dma-noncoherent.c

mm/arch: use __free_reserved_page() to simplify the code

2013-11-13 12:09:03 +09:00

fault.c

arch: mm: pass userspace fault flag to generic fault handler

2013-09-12 15:38:01 -07:00

fsl_booke_mmu.c

powerpc/fsl-booke: Fixup calc_cam_sz to support MMU v2

2012-03-15 12:12:19 -05:00

gup.c

powerpc: Fix __get_user_pages_fast() irq handling

2013-11-21 10:33:37 +11:00

hash_low_32.S

powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly

2012-07-11 14:18:22 +10:00

hash_low_64.S

powerpc/mm: handle hugepage size correctly when invalidating hpte entries

2013-06-21 16:01:52 +10:00

hash_native_64.c

powerpc: Book 3S MMU little endian support

2013-10-11 16:48:26 +11:00

hash_utils_64.c

powerpc: Book 3S MMU little endian support

2013-10-11 16:48:26 +11:00

highmem.c

mm: fix race in kunmap_atomic()

2010-10-27 18:03:05 -07:00

hugepage-hash64.c

powerpc: Make linux pagetable walk safe with THP enabled

2013-06-21 16:01:56 +10:00

hugetlbpage-book3e.c

powerpc/booke: Only check for hugetlb in flush if vma != NULL

2013-11-22 16:57:29 -06:00

hugetlbpage-hash64.c

powerpc/mm: handle hugepage size correctly when invalidating hpte entries

2013-06-21 16:01:52 +10:00

hugetlbpage.c

mm: remove obsolete comments about page table lock

2013-11-13 12:09:03 +09:00

icswx_pid.c

powerpc: Split ICSWX ACOP and PID processing

2011-11-25 14:11:27 +11:00

icswx.c

powerpc: Fix typo "CONFIG_ICSWX_PID"

2013-04-18 13:03:54 +10:00

icswx.h

powerpc/icswx: Fix race condition with IPI setting ACOP

2012-03-07 17:06:09 +11:00

init_32.c

powerpc/8xx: Fixing memory init issue with CONFIG_PIN_TLB

2013-10-28 21:11:22 -05:00

init_64.c

powerpc: Prepare to support kernel handling of IOMMU map/unmap

2013-10-11 17:24:39 +11:00

Makefile

powerpc/THP: Add code to handle HPTE faults for hugepages

2013-06-21 16:01:56 +10:00

mem.c

powerpc: Fix memory hotplug with sparse vmemmap

2013-10-03 17:21:38 +10:00

mmap.c

mm: remove free_area_cache

2013-07-10 18:11:34 -07:00

mmu_context_hash32.c

powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE

2011-10-31 19:30:38 -04:00

mmu_context_hash64.c

powerpc: Reduce PTE table memory wastage

2013-04-30 16:00:07 +10:00

mmu_context_nohash.c

powerpc: Delete __cpuinit usage from all users

2013-07-01 11:10:36 +10:00

mmu_decl.h

powerpc/fsl-booke: Fix setup_initial_memory_limit to not blindly map

2011-10-11 23:30:41 -05:00

numa.c

mm: use pgdat_end_pfn() to simplify the code in arch

2013-11-13 12:09:03 +09:00

pgtable_32.c

powerpc: handle pgtable_page_ctor() fail

2013-11-15 09:32:18 +09:00

pgtable_64.c

powerpc: handle pgtable_page_ctor() fail

2013-11-15 09:32:18 +09:00

pgtable.c

powerpc/8xx: Revert commit e0908085fc2391c85b85fb814ae1df377c8e0dcb

2013-10-28 21:11:18 -05:00

ppc_mmu_32.c

memblock: Remove rmo_size, burry it in arch/powerpc where it belongs

2010-08-05 12:56:08 +10:00

slb_low.S

powerpc: Rename USER_ESID_BITS* to ESID_BITS*

2013-03-17 12:45:44 +11:00

slb.c

powerpc: Fix little endian lppaca, slb_shadow and dtl_entry

2013-08-14 15:33:35 +10:00

slice.c

powerpc: ppc64 address space capped at 32TB, mmap randomisation disabled

2013-11-21 10:33:41 +11:00

stab.c

powerpc/mm: Remove uses of abs_to_virt() and virt_to_abs()

2012-09-05 15:19:31 +10:00

subpage-prot.c

powerpc: Fix a number of sparse warnings

2013-08-14 11:50:24 +10:00

tlb_hash32.c

powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE

2011-10-31 19:30:38 -04:00

tlb_hash64.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2013-07-04 10:29:23 -07:00

tlb_low_64e.S

powerpc/booke64: Use SPRG0/3 scratch for bolted TLB miss & crit int

2012-09-05 15:35:52 +10:00

tlb_nohash_low.S

powerpc/47x: Use the new ppc-opcode infrastructure

2012-11-15 12:59:24 +11:00

tlb_nohash.c

powerpc/booke: Only check for hugetlb in flush if vma != NULL

2013-11-22 16:57:29 -06:00