[dm-devel] [PATCH] multipath: strdup multipath alias, so that it isn't deleted.

Benjamin Marzinski bmarzins at redhat.com
Thu Sep 1 02:45:42 UTC 2011


Christophe, would it be possible to get this merged?

Thanks,
-Ben

On Mon, Jul 25, 2011 at 01:27:00PM -0500, Benjamin Marzinski wrote:
> When a multipath device is added to multipathd with ev_add_map(),
> the alias is not duplicated, and is freed immediately after ev_add_map()
> returns, causing a memory error. This patch corrects that.
> 
> Signed-off-by: Benjamin Marzinski <bmarzins at redhat.com>
> ---
>  libmultipath/structs_vec.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/libmultipath/structs_vec.c b/libmultipath/structs_vec.c
> index 189f25b..364e36e 100644
> --- a/libmultipath/structs_vec.c
> +++ b/libmultipath/structs_vec.c
> @@ -373,7 +373,7 @@ add_map_without_path (struct vectors * vecs, char * alias)
>  	if (!mpp || !alias)
>  		return NULL;
>  
> -	mpp->alias = alias;
> +	mpp->alias = STRDUP(alias);
>  
>  	if (setup_multipath(vecs, mpp)) {
>  		mpp->alias = NULL;
> -- 
> 1.7.4.4
> 
> --
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