diff --git a/configs/clicker2-stm32/src/stm32_mrf24j40.c b/configs/clicker2-stm32/src/stm32_mrf24j40.c
index bab336cafa1..e3732fefd98 100644
--- a/configs/clicker2-stm32/src/stm32_mrf24j40.c
+++ b/configs/clicker2-stm32/src/stm32_mrf24j40.c
@@ -290,6 +290,7 @@ static int stm32_mrf24j40_devsetup(FAR struct stm32_priv_s *priv)
     }
 #endif
 
+  UNUSED(ret);
   return OK;
 }
 
diff --git a/drivers/loop/losetup.c b/drivers/loop/losetup.c
index c06c54e1ffe..32c2f4d4374 100644
--- a/drivers/loop/losetup.c
+++ b/drivers/loop/losetup.c
@@ -375,7 +375,7 @@ int losetup(FAR const char *devname, FAR const char *filename,
   FAR struct loop_struct_s *dev;
   struct stat sb;
   int ret;
-  int fd;
+  int fd = -1;
 
   /* Sanity check */