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| author | Steven Rostedt <srostedt@redhat.com> | 2012-04-06 00:48:02 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2012-04-25 13:35:35 +0200 |
| commit | a2525a0852d81b1cf1155d75d1e3db9682fee191 (patch) | |
| tree | d203cae23682148bd6ff1a4d6740d9c11641ba47 /tools | |
| parent | 14ffde0e966efab6724e2de3ab470b78d4e01109 (diff) | |
| download | linux-a2525a0852d81b1cf1155d75d1e3db9682fee191.tar.gz linux-a2525a0852d81b1cf1155d75d1e3db9682fee191.tar.bz2 linux-a2525a0852d81b1cf1155d75d1e3db9682fee191.zip | |
parse-events: Let pevent_free() take a NULL pointer
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>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/lib/traceevent/event-parse.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index cdb32c78d150..4d5092f67167 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -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; |