[Xen-devel] [PATCH] libxl: remove QMP warning when no pty style serial device is configured

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

# HG changeset patch
# User Ian Campbell <ian.campbell@xxxxxxxxxx>
# Date 1318499067 -3600
# Node ID 6ca28d551fd5f3d7d7849b6b95d3beda5b9cd10e
# Parent  82b2eeea91d059dd79cf7621d487a0cf7d29933e
libxl: remove QMP warning when no pty style serial device is configured

If the serial device is not "pty" then there is nothing to do but this is not
an error. Removes a spurious warning if e.g. serial="file:/tmp/serial.log" is 
used:

libxl: error: libxl_qmp.c:137:register_serials_chardev_callback: Failed to 
store serial port information in xenstore: No such file or directory


Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

diff -r 82b2eeea91d0 -r 6ca28d551fd5 tools/libxl/libxl_qmp.c
--- a/tools/libxl/libxl_qmp.c   Thu Oct 13 10:44:25 2011 +0100
+++ b/tools/libxl/libxl_qmp.c   Thu Oct 13 10:44:27 2011 +0100
@@ -87,7 +87,7 @@ static int store_serial_port_info(libxl_
     int ret = 0;
 
     if (!(chardev && strncmp("pty:", chardev, 4) == 0)) {
-        return -1;
+        return 0;
     }
 
     path = libxl__xs_get_dompath(&gc, qmp->domid);

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