pthread :checking for invalid rwlock parameters

This patch adds check for invalid rwlock initialization parameters.

Change-Id: Ifaf2654a72b0f67b354c742a8bfc230e23e4ad57
Signed-off-by: jc_.kim <jc_.kim@samsung.com>

diff --git a/lib/libc/pthread/pthread_rwlock.c b/lib/libc/pthread/pthread_rwlock.c
index 665767d..4c09979 100644 (file)
--- a/lib/libc/pthread/pthread_rwlock.c
+++ b/lib/libc/pthread/pthread_rwlock.c
@@ -71,8 +71,12 @@ int pthread_rwlock_init(FAR pthread_rwlock_t *lock, FAR const pthread_rwlockattr
 {
        int err;
 
+       if (lock == NULL) {
+               return EINVAL;
+       }
+
        if (attr != NULL) {
-               return -ENOSYS;
+               return ENOSYS;
        }
 
        lock->num_readers = 0;