--- a/src/os/unix/ngx_recv.c
+++ b/src/os/unix/ngx_recv.c
@@ -126,15 +126,19 @@ ssize_t ngx_unix_recv(ngx_connection_t *
         ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
                        "recv: fd:%d %d of %d", c->fd, n, size);
 
-        if (n >= 0) {
-            if ((size_t) n < size) {
+        if (n == 0) {
+            rev->ready = 0;
+            rev->eof = 1;
+            return n;
+
+        } else if (n > 0) {
+
+            if ((size_t) n < size
+                && !(ngx_event_flags & NGX_HAVE_GREEDY_EVENT))
+            {
                 rev->ready = 0;
             }
 
-            if (n == 0) {
-                rev->eof = 1;
-            }
-
             return n;
         }