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-rw-r--r--arch/mips/mm/init.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 1c07ca84ee21..352718e43f69 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -426,10 +426,11 @@ static inline void __init highmem_init(void)
unsigned long tmp;
/*
- * If CPU cannot support HIGHMEM discard the memory above highstart_pfn
+ * If CPU cannot support HIGHMEM discard any memory above highstart_pfn
*/
if (cpu_has_dc_aliases) {
- memblock_remove(PFN_PHYS(highstart_pfn), -1);
+ if (highstart_pfn)
+ memblock_remove(PFN_PHYS(highstart_pfn), -1);
return;
}