diff --git a/sys/src/libc/mips/lock.c b/sys/src/libc/mips/lock.c
index c42208822..9c9bd2208 100644
--- a/sys/src/libc/mips/lock.c
+++ b/sys/src/libc/mips/lock.c
@@ -124,8 +124,9 @@ retry:
 				return 1;
 			}
 		}
-		return 0;
+		break;
 	}
+	return 0;
 }
 
 void
@@ -164,6 +165,7 @@ retry:
 				return 0;
 			}
 		}
-		return 1;
+		break;
 	}
+	return 1;
 }