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mm/memblock.c: reversed logic in memblock_discard() 

In recently introduced memblock_discard() there is a reversed logic bug.
Memory is freed of static array instead of dynamically allocated one.

Link: http://lkml.kernel.org/r/1503511441-95478-2-git-send-email-pasha.tatashin@oracle.com
Fixes: 3010f87650 ("mm: discard memblock data later")
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reported-by: Woody Suwalski <terraluna977@gmail.com>
Tested-by: Woody Suwalski <terraluna977@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Pavel Tatashin 2017-08-25 15:55:46 -07:00 committed by Linus Torvalds
parent 2b7e8665b4
commit 91b540f988
1 changed files with 1 additions and 1 deletions
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mm/memblock.c
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@ -299,7 +299,7 @@ void __init memblock_discard(void)
__memblock_free_late(addr, size); __memblock_free_late(addr, size);
} }
if (memblock.memory.regions == memblock_memory_init_regions) { if (memblock.memory.regions != memblock_memory_init_regions) {
addr = __pa(memblock.memory.regions); addr = __pa(memblock.memory.regions);
size = PAGE_ALIGN(sizeof(struct memblock_region) * size = PAGE_ALIGN(sizeof(struct memblock_region) *
memblock.memory.max); memblock.memory.max);