[PATCH] Don't set wildcard filter for non-existing module

[Jan Kiszka]

From: Jan Kiszka <jan.kis...@siemens.com>

If filter_mod is NULL, there is no need to add it to the list. This
avoids premature termination of trace-cmd on systems without
CONFIG_DYNAMIC_FTRACE.

Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
 trace-record.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/trace-record.c b/trace-record.c
index 020a373..a0b6541 100644
--- a/trace-record.c
+++ b/trace-record.c
@@ -4680,7 +4680,7 @@ void trace_record (int argc, char **argv)
                }
        }
 
-       if (!filtered)
+       if (!filtered && instance->filter_mod)
                add_func(&instance->filter_funcs,
                         instance->filter_mod, "*");
 
-- 
2.12.3