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| author | Namhyung Kim <namhyung.kim@lge.com> | 2012-08-22 16:00:28 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-08-22 16:02:36 -0300 |
| commit | fd34f0b26c9d0f3c3c5c5f83207efa6324cd19f7 (patch) | |
| tree | 56f348f5a12e6282c7a4d610238f1181b8f7bb66 /tools/lib | |
| parent | 1659d129ed014b715b0b2120e6fd929bdd33ed03 (diff) | |
| download | op-kernel-dev-fd34f0b26c9d0f3c3c5c5f83207efa6324cd19f7.zip op-kernel-dev-fd34f0b26c9d0f3c3c5c5f83207efa6324cd19f7.tar.gz | |
tools lib traceevent: Do not link broken field arg for an old ftrace event
Defer linking a newly allocated arg to print_fmt.args until all of its
field is setup so that later access to ->field.name cannot be NULL.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1345618831-9148-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/traceevent/event-parse.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index b7c2c49..33fcd94 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -4754,20 +4754,20 @@ int pevent_parse_event(struct pevent *pevent, struct print_arg *arg, **list; /* old ftrace had no args */ - list = &event->print_fmt.args; for (field = event->format.fields; field; field = field->next) { arg = alloc_arg(); - *list = arg; - list = &arg->next; arg->type = PRINT_FIELD; arg->field.name = strdup(field->name); if (!arg->field.name) { do_warning("failed to allocate field name"); event->flags |= EVENT_FL_FAILED; + free_arg(arg); return -1; } arg->field.field = field; + *list = arg; + list = &arg->next; } return 0; } |
