perf probe: Delete an unnecessary check before the function call “strfilter__delete”

Author: Markus Elfring <>

The strfilter__delete() function tests whether its argument is NULL and
then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring 
Acked-by: Masami Hiramatsu 
Cc: Julia Lawall 
Cc: Peter Zijlstra 
Signed-off-by: Arnaldo Carvalho de Melo 
 tools/perf/builtin-probe.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 1272559..b81cec3 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -297,8 +297,7 @@ static void cleanup_params(void)
 		clear_perf_probe_event( + i);
-	if (params.filter)
-		strfilter__delete(params.filter);
+	strfilter__delete(params.filter);
 	memset(&params, 0, sizeof(params));