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parse-events: Let pevent_free() take a NULL pointer

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The pevent_free() should ack like other free()s and allow a
NULL pointer to be passed to it which makes error handling a bit
easier for the users of pevent_free().

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Arun Sharma <asharma@fb.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Steven Rostedt 2012-04-06 00:48:02 +02:00 committed by Frederic Weisbecker
parent 14ffde0e96
commit a2525a0852
1 changed files with 10 additions and 3 deletions
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13
tools/lib/traceevent/event-parse.c
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@ -4960,13 +4960,20 @@ static void free_event(struct event_format *event)
*/
void pevent_free(struct pevent *pevent)
{
struct cmdline_list *cmdlist = pevent->cmdlist, *cmdnext;
struct func_list *funclist = pevent->funclist, *funcnext;
struct printk_list *printklist = pevent->printklist, *printknext;
struct cmdline_list *cmdlist, *cmdnext;
struct func_list *funclist, *funcnext;
struct printk_list *printklist, *printknext;
struct pevent_function_handler *func_handler;
struct event_handler *handle;
int i;
if (!pevent)
return;
cmdlist = pevent->cmdlist;
funclist = pevent->funclist;
printklist = pevent->printklist;
pevent->ref_count--;
if (pevent->ref_count)
return;