[tip:perf/core] tools lib traceevent: Add destructor for format_field

[tip-bot for David Ahern <tipbot@zytor.com>]

Commit-ID:  00ae1127a03d20f5ef89f3c1fe7d4720270fc2a5
Gitweb:     http://git.kernel.org/tip/00ae1127a03d20f5ef89f3c1fe7d4720270fc2a5
Author:     David Ahern <dsahern@gmail.com>
AuthorDate: Thu, 19 Mar 2015 12:36:21 -0600
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Sat, 21 Mar 2015 14:53:38 -0300

tools lib traceevent: Add destructor for format_field

Move the calls that frees the resources allocated for a struct format_field to
a separate routine.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1426790181-19118-1-git-send-email-dsahern@gmail.com
[ Split this part from a larger patch, added pevent_ prefix as requested by Steven ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 11 ++++++++---
 tools/lib/traceevent/event-parse.h |  1 +
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index afe20ed..d7c37a7 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -6228,15 +6228,20 @@ void pevent_ref(struct pevent *pevent)
 	pevent->ref_count++;
 }
 
+void pevent_free_format_field(struct format_field *field)
+{
+	free(field->type);
+	free(field->name);
+	free(field);
+}
+
 static void free_format_fields(struct format_field *field)
 {
 	struct format_field *next;
 
 	while (field) {
 		next = field->next;
-		free(field->type);
-		free(field->name);
-		free(field);
+		pevent_free_format_field(field);
 		field = next;
 	}
 }
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 5b4efc0..6abda54 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -619,6 +619,7 @@ enum pevent_errno pevent_parse_format(struct pevent *pevent,
 				      const char *buf,
 				      unsigned long size, const char *sys);
 void pevent_free_format(struct event_format *event);
+void pevent_free_format_field(struct format_field *field);
 
 void *pevent_get_field_raw(struct trace_seq *s, struct event_format *event,
 			   const char *name, struct pevent_record *record,