diff options
Diffstat (limited to 'mm/memblock.c')
| -rw-r--r-- | mm/memblock.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/memblock.c b/mm/memblock.c index 85cfa1d3ab2..cb520df2a41 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -105,6 +105,12 @@ static phys_addr_t __init memblock_find_region(phys_addr_t start, phys_addr_t en phys_addr_t base, res_base; long j; + /* Prevent allocations returning 0 as it's also used to + * indicate an allocation failure + */ + if (start == 0) + start = PAGE_SIZE; + base = memblock_align_down((end - size), align); while (start <= base) { j = memblock_overlaps_region(&memblock.reserved, base, size); |