From: Lei Li <lilei@linux.vnet.ibm.com>
Date: Wed, 4 Sep 2013 09:02:34 +0000 (+0800)
Subject: savevm: add comments for qemu_file_get_error()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=675fd0a7daa484a2011895583249c88ef2a27921;p=qemu.git

savevm: add comments for qemu_file_get_error()

Add comments for qemu_file_get_error(), as its return value
is not very clear.

Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---

diff --git a/savevm.c b/savevm.c
index 4a3c819fcd..a834c6f69a 100644
--- a/savevm.c
+++ b/savevm.c
@@ -566,6 +566,13 @@ QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops)
     return f;
 }
 
+/*
+ * Get last error for stream f
+ *
+ * Return negative error value if there has been an error on previous
+ * operations, return 0 if no error happened.
+ *
+ */
 int qemu_file_get_error(QEMUFile *f)
 {
     return f->last_error;