edit printout in lttng list "all" channels

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/lttng/commands/list.c b/lttng/commands/list.c
index bac17b8970b9c88379f47b81fc977ed1ec461602..035269a5860ac8c43364ae2044f9f48be389c3fa 100644 (file)
--- a/lttng/commands/list.c
+++ b/lttng/commands/list.c
@@ -333,7 +333,7 @@ static int list_channels(const char *channel_name)
        unsigned int chan_found = 0;
        struct lttng_channel *channels = NULL;
 
-       DBG("Listing channel(s) (%s)", channel_name);
+       DBG("Listing channel(s) (%s)", channel_name ? : "<all>");
 
        count = lttng_list_channels(handle, &channels);
        if (count < 0) {