(allocate_stack): Assume atomic_exchange_and_add returns the old value.

diff --git a/nptl/allocatestack.c b/nptl/allocatestack.c
index f22f304347f969700b82a67beaa2638806bac9fc..c199cf21d487967d7f49dca55fd9fb9e14bcff54 100644 (file)
--- a/nptl/allocatestack.c
+++ b/nptl/allocatestack.c
@@ -400,7 +400,8 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp,
 
 #if COLORING_INCREMENT != 0
          /* Atomically increment NCREATED.  */
-         unsigned int ncreated = atomic_exchange_and_add (&nptl_ncreated, 1);
+         unsigned int ncreated = (atomic_exchange_and_add (&nptl_ncreated, 1)
+                                  + 1);
 
          /* We chose the offset for coloring by incrementing it for
             every new thread by a fixed amount.  The offset used