[lttng-dev] [PATCH lttng-tools] Fix: UST per-UID channels persist across application teardown

[David Goulet]

Merged!

Mathieu Desnoyers:
> Fixes #582
> 
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
> ---
> diff --git a/src/bin/lttng-sessiond/ust-app.c b/src/bin/lttng-sessiond/ust-app.c
> index 2d7a81f..c329650 100644
> --- a/src/bin/lttng-sessiond/ust-app.c
> +++ b/src/bin/lttng-sessiond/ust-app.c
> @@ -377,10 +377,12 @@ void delete_ust_app_channel(int sock, struct ust_app_channel *ua_chan,
>  		delete_ust_app_event(sock, ua_event);
>  	}
>  
> -	/* Wipe and free registry from session registry. */
> -	registry = get_session_registry(ua_chan->session);
> -	if (registry) {
> -		ust_registry_channel_del_free(registry, ua_chan->key);
> +	if (ua_chan->session->buffer_type == LTTNG_BUFFER_PER_PID) {
> +		/* Wipe and free registry from session registry. */
> +		registry = get_session_registry(ua_chan->session);
> +		if (registry) {
> +			ust_registry_channel_del_free(registry, ua_chan->key);
> +		}
>  	}
>  
>  	if (ua_chan->obj != NULL) {