[PATCH] riscv/mm: Use BUG_ON instead of if condition followed by BUG.

[zhouchuangao]

BUG_ON() uses unlikely in if(), which can be optimized at compile time.

Signed-off-by: zhouchuangao <zhouchuangao at vivo.com>
---
 arch/riscv/mm/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 067583a..a7fa5e2 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -213,8 +213,8 @@ static phys_addr_t alloc_pte_late(uintptr_t va)
 	unsigned long vaddr;
 
 	vaddr = __get_free_page(GFP_KERNEL);
-	if (!vaddr || !pgtable_pte_page_ctor(virt_to_page(vaddr)))
-		BUG();
+	BUG_ON(!vaddr || !pgtable_pte_page_ctor(virt_to_page(vaddr)));
+
 	return __pa(vaddr);
 }
 
-- 
2.7.4