1 files changed, 1 insertions, 4 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index c9e5a1c14e08..e69edc74aeeb 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -981,12 +981,9 @@ static void check_stack_usage(void)
 {
         static DEFINE_SPINLOCK(low_water_lock);
         static int lowest_to_date = THREAD_SIZE;
-        unsigned long *n = end_of_stack(current);
         unsigned long free;
 
-        while (*n == 0)
-                n++;
-        free = (unsigned long)n - (unsigned long)end_of_stack(current);
+        free = stack_not_used(current);
 
         if (free >= lowest_to_date)
                 return;