1 files changed, 2 insertions, 1 deletions

diff --git a/arch/mips/loongson/common/machtype.c b/arch/mips/loongson/common/machtype.c
index 81fbe6b73f91..2efd5d9dee27 100644
--- a/arch/mips/loongson/common/machtype.c
+++ b/arch/mips/loongson/common/machtype.c
@@ -41,7 +41,7 @@ void __weak __init mach_prom_init_machtype(void)
 
 void __init prom_init_machtype(void)
 {
-        char *p, str[MACHTYPE_LEN];
+        char *p, str[MACHTYPE_LEN + 1];
         int machtype = MACH_LEMOTE_FL2E;
 
         mips_machtype = LOONGSON_MACHTYPE;
@@ -53,6 +53,7 @@ void __init prom_init_machtype(void)
         }
         p += strlen("machtype=");
         strncpy(str, p, MACHTYPE_LEN);
+        str[MACHTYPE_LEN] = '\0';
         p = strstr(str, " ");
         if (p)
                 *p = '\0';