diff --git a/libril/ril.cpp b/libril/ril.cpp
index 1cf1ef5..31d5eb9 100644
--- a/libril/ril.cpp
+++ b/libril/ril.cpp
@@ -1184,7 +1184,7 @@
         return ret;
     }
 
-    blockingWrite(fd, data, dataSize);
+    ret = blockingWrite(fd, data, dataSize);
 
     if (ret < 0) {
         return ret;