Bug fixes plus adaptation to current MinGW/MsysDTK environment. Changes to tests/benchmarks.

1 files changed, 5 insertions, 3 deletions

diff --git a/pthread_spin_lock.c b/pthread_spin_lock.c
index d3355d1..f9210f1 100644
--- a/pthread_spin_lock.c
+++ b/pthread_spin_lock.c
@@ -38,14 +38,16 @@
 #include "implement.h"
 
 
-/*
- * NOTE: For speed, these routines don't check if "lock" is valid.
- */
 int
 pthread_spin_lock(pthread_spinlock_t *lock)
 {
   register pthread_spinlock_t s;
 
+  if (NULL == lock || NULL == *lock)
+    {
+      return(EINVAL);
+    }
+
   if (*lock == PTHREAD_SPINLOCK_INITIALIZER)
     {
       int result;