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 <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
LKML-Reference: <Pine.LNX.4.64.0912061016120[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 9e5dbd66d34d7aa95aad038d2168eaed5ef920b3..448a13b520150e16ce777d25a103dbcac5093254 100644 (file)
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -197,7 +197,7 @@ struct tracepoint_path *tracepoint_id_to_path(u64 config)
                        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);