arm64: mm: remove unnecessary BUG_ON

The memblock_alloc() and memblock_alloc_base() will panic on their own
if no free memory, remove pointless BUG_ON.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index c356f7b..0c95d6e 100644 (file)
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -77,7 +77,6 @@ static phys_addr_t __init early_pgtable_alloc(void)
        void *ptr;
 
        phys = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
-       BUG_ON(!phys);
 
        /*
         * The FIX_{PGD,PUD,PMD} slots may be in active use, but the FIX_PTE