From: Jeff Cody <jcody@redhat.com>
Date: Fri, 18 Jan 2013 17:45:35 +0000 (-0500)
Subject: block: Monitor command commit neglects to report some errors
X-Git-Tag: v1.4.0-rc0~77^2~6
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=58513bde833804bc9395d79fd81aae631b97c348;p=thirdparty%2Fqemu.git

block: Monitor command commit neglects to report some errors

The non-live bdrv_commit() function may return one of the following
errors: -ENOTSUP, -EBUSY, -EACCES, -EIO.  The only error that is
checked in the HMP handler is -EBUSY, so the monitor command 'commit'
silently fails for all error cases other than 'Device is in use'.

Report error using monitor_printf() and strerror(), and convert existing
qerror_report() calls in do_commit() to monitor_printf().

Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---

diff --git a/blockdev.c b/blockdev.c
index 9126587c459..030070b607d 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -642,21 +642,17 @@ void do_commit(Monitor *mon, const QDict *qdict)
 
     if (!strcmp(device, "all")) {
         ret = bdrv_commit_all();
-        if (ret == -EBUSY) {
-            qerror_report(QERR_DEVICE_IN_USE, device);
-            return;
-        }
     } else {
         bs = bdrv_find(device);
         if (!bs) {
-            qerror_report(QERR_DEVICE_NOT_FOUND, device);
+            monitor_printf(mon, "Device '%s' not found\n", device);
             return;
         }
         ret = bdrv_commit(bs);
-        if (ret == -EBUSY) {
-            qerror_report(QERR_DEVICE_IN_USE, device);
-            return;
-        }
+    }
+    if (ret < 0) {
+        monitor_printf(mon, "'commit' error for '%s': %s\n", device,
+                       strerror(-ret));
     }
 }