[PATCH v3 2/5] qemu: Introduce VIR_ERR_DEVICE_MISSING

[Chen Hanxiao <chen_han_xiao@xxxxxxx>]

From: Chen Hanxiao <chenhanxiao@xxxxxxxxx>

Add new error code to be able to allow consumers (such as Nova) to be
able to key of a specific error code rather than needing to search the
error message."

Signed-off-by: Chen Hanxiao <chenhanxiao@xxxxxxxxx>
---
v3:
  commit message updated

 include/libvirt/virterror.h | 1 +
 src/util/virerror.c         | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/include/libvirt/virterror.h b/include/libvirt/virterror.h
index 91ba29784..3e7c7a02c 100644
--- a/include/libvirt/virterror.h
+++ b/include/libvirt/virterror.h
@@ -320,6 +320,7 @@ typedef enum {
     VIR_ERR_AGENT_UNSYNCED = 97,        /* guest agent replies with wrong id
                                            to guest-sync command (DEPRECATED)*/
     VIR_ERR_LIBSSH = 98,                /* error in libssh transport driver */
+    VIR_ERR_DEVICE_MISSING = 99,        /* fail to find the desired device */
 } virErrorNumber;
 
 /**
diff --git a/src/util/virerror.c b/src/util/virerror.c
index 562c3bc61..c000b0043 100644
--- a/src/util/virerror.c
+++ b/src/util/virerror.c
@@ -1453,6 +1453,12 @@ virErrorMsg(virErrorNumber error, const char *info)
             else
                 errmsg = _("libssh transport error: %s");
             break;
+        case VIR_ERR_DEVICE_MISSING:
+            if (info == NULL)
+                errmsg = _("device not found");
+            else
+                errmsg = _("device not found: %s");
+            break;
     }
     return errmsg;
 }
-- 
2.14.3

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