X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=opt%2Fnothread%2Fmtx_unlock.c;h=97a93a67ac021e8c319c6966a0609859446dc511;hb=66650707acada328341a3812007307b1b9676803;hp=214a06390a51e752f109b7d53fb1561291b72b03;hpb=cce3efd57a644a1fa1ee8fcb14b6b934d40c10d2;p=pdclib

diff --git a/opt/nothread/mtx_unlock.c b/opt/nothread/mtx_unlock.c
index 214a063..97a93a6 100644
--- a/opt/nothread/mtx_unlock.c
+++ b/opt/nothread/mtx_unlock.c
@@ -3,10 +3,9 @@
 
 int mtx_unlock(mtx_t *mtx)
 {
-	if(*mtx) {
-		*mtx = 0;
-		return thrd_success;
-	} else return thrd_error;
+	if(--(*mtx) >= 0)
+        return thrd_success;
+    return thrd_error;
 }
 #endif