Drivers: hv: vmbus: Do not attempt to negoatiate a new version premat…

…urely The current code would attempt to negotiate a different protocol version if the current negotiation timed out. This triggers an assert in the host (on debug builds). Avoid this by negotiating a newer version only if the host properly rejects the current version being negotiated. Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
alberto-fc · Aug 30, 2013 · 666b9ad · 666b9ad
1 parent e83736c
commit 666b9ad
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
@@ -195,7 +195,10 @@ int vmbus_connect(void)
 
 	do {
 		ret = vmbus_negotiate_version(msginfo, version);
-		if (ret == 0)
+		if (ret)
+			goto cleanup;
+
+		if (vmbus_connection.conn_state == CONNECTED)
 			break;
 
 		version = vmbus_get_next_version(version);