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Re: [libvirt] [PATCHv2] console: plug memory leaks



On 12/20/2011 02:40 AM, ajia redhat com wrote:
> From: Alex Jia <ajia redhat com>
> 
> Using 'virReallocN' to allocate memory on virConsoleEventOnStdin,
> virConsoleEventOnStdout and virConsoleEventOnStream, however, the
> cleanup function virConsoleShutdown hasn't released these memory.
> 
> * tools/console.c: fix memory leaks on virConsoleShutdown.
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=767488
> 
> Signed-off-by: Alex Jia <ajia redhat com>
> ---
>  tools/console.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/tools/console.c b/tools/console.c
> index e6118a0..63e51ce 100644
> --- a/tools/console.c
> +++ b/tools/console.c
> @@ -101,6 +101,10 @@ virConsoleShutdown(virConsolePtr con)
>          virStreamAbort(con->st);
>          virStreamFree(con->st);
>      }
> +    if (con->streamToTerminal.data)
> +        VIR_FREE(con->streamToTerminal.data);
> +    if (con->terminalToStream.data)
> +        VIR_FREE(con->terminalToStream.data);

This fails 'make syntax-check'.

ACK to the leak fix, though, so pushing with this squashed in:

diff --git i/tools/console.c w/tools/console.c
index 63e51ce..4a32522 100644
--- i/tools/console.c
+++ w/tools/console.c
@@ -1,7 +1,7 @@
 /*
  * console.c: A dumb serial console client
  *
- * Copyright (C) 2007, 2008, 2010 Red Hat, Inc.
+ * Copyright (C) 2007-2008, 2010-2011 Red Hat, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -101,10 +101,8 @@ virConsoleShutdown(virConsolePtr con)
         virStreamAbort(con->st);
         virStreamFree(con->st);
     }
-    if (con->streamToTerminal.data)
-        VIR_FREE(con->streamToTerminal.data);
-    if (con->terminalToStream.data)
-        VIR_FREE(con->terminalToStream.data);
+    VIR_FREE(con->streamToTerminal.data);
+    VIR_FREE(con->terminalToStream.data);
     if (con->stdinWatch != -1)
         virEventRemoveHandle(con->stdinWatch);
     if (con->stdoutWatch != -1)

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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