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-rw-r--r--mm/memblock.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/memblock.c b/mm/memblock.c
index 85cfa1d3ab28..cb520df2a414 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);