From: Juan Quintela <quintela@redhat.com>
Date: Tue, 25 Oct 2011 17:18:58 +0000 (+0200)
Subject: savevm: qemu_fille_buffer() used to return one error for reads of size 0.
X-Git-Tag: qemu-xen-4.3.0-rc1~2063^2~25
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=fa39a30fe4b92adb77178f388947da922d41648d;p=qemu-upstream-4.5-testing.git

savevm: qemu_fille_buffer() used to return one error for reads of size 0.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---

diff --git a/savevm.c b/savevm.c
index f01838fb2..bee16c0b7 100644
--- a/savevm.c
+++ b/savevm.c
@@ -476,6 +476,8 @@ static void qemu_fill_buffer(QEMUFile *f)
     if (len > 0) {
         f->buf_size += len;
         f->buf_offset += len;
+    } else if (len == 0) {
+        f->last_error = -EIO;
     } else if (len != -EAGAIN)
         f->last_error = len;
 }