[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 1317735934 -3600
# Node ID a0b8388fc4c82e345377679f4bffe7ab5d9eb55d
# Parent  c344d6d30b0f3796ebff069d6ecdde481c9e6a32
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 c344d6d30b0f -r a0b8388fc4c8 tools/libxl/libxl_qmp.c
--- a/tools/libxl/libxl_qmp.c   Tue Oct 04 14:43:56 2011 +0100
+++ b/tools/libxl/libxl_qmp.c   Tue Oct 04 14:45:34 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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