perf tools: Correct size computation in tracepoint_id_to_path()
The size argument to zalloc should be the size of desired
structure, not the pointer to it.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@expression@
expression *x;
@@
x =
<+...
-sizeof(x)
+sizeof(*x)
...+>// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <Pine.LNX.4.64.0912061016120.20858@ask.diku.dk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 9e5dbd6..448a13b 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -197,7 +197,7 @@
if (id == config) {
closedir(evt_dir);
closedir(sys_dir);
- path = zalloc(sizeof(path));
+ path = zalloc(sizeof(*path));
path->system = malloc(MAX_EVENT_LENGTH);
if (!path->system) {
free(path);