From: Yehuda Sadeh <yehuda@redhat.com>
Date: Wed, 20 Jan 2016 18:32:15 +0000 (-0800)
Subject: rgw: client io shouldn't try to write zero length buffer
X-Git-Tag: v10.0.4~152^2^2~5
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=6c7ab5f14da36c2e97106143213bf32974691a51;p=ceph.git

rgw: client io shouldn't try to write zero length buffer

Signed-off-by: Yehuda Sadeh <yehuda@redhat.com>
---

diff --git a/src/rgw/rgw_client_io.cc b/src/rgw/rgw_client_io.cc
index 1f8b803a3d40..b6ef745c4f27 100644
--- a/src/rgw/rgw_client_io.cc
+++ b/src/rgw/rgw_client_io.cc
@@ -51,6 +51,10 @@ int RGWClientIO::print(const char *format, ...)
 
 int RGWClientIO::write(const char *buf, int len)
 {
+  if (len == 0) {
+    return 0;
+  }
+
   int ret = write_data(buf, len);
   if (ret < 0)
     return ret;