savevm: add comments for qemu_file_get_error()

[qemu.git] / savevm.c

diff --git a/savevm.c b/savevm.c
index 4a3c819fcdda5a4ded652c510f6178a03f9324d9..a834c6f69ac7050761fa52781f21e9bc998b49c4 100644 (file)
--- 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;