perf kmem: Use memdup()

Instead of hand coded equivalent.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-42ldngi973f4ssvzlklo8t2k@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index c746108c5d48083f870dd58ddd278364e69e3c6a..46878daca5cc723b3200763e023744e87c7dc2fd 100644 (file)
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -17,6 +17,7 @@
 #include "util/debug.h"
 
 #include <linux/rbtree.h>
+#include <linux/string.h>
 
 struct alloc_stat;
 typedef int (*sort_fn_t)(struct alloc_stat *, struct alloc_stat *);
@@ -618,12 +619,11 @@ static int sort_dimension__add(const char *tok, struct list_head *list)
 
        for (i = 0; i < NUM_AVAIL_SORTS; i++) {
                if (!strcmp(avail_sorts[i]->name, tok)) {
-                       sort = malloc(sizeof(*sort));
+                       sort = memdup(avail_sorts[i], sizeof(*avail_sorts[i]));
                        if (!sort) {
-                               pr_err("%s: malloc failed\n", __func__);
+                               pr_err("%s: memdup failed\n", __func__);
                                return -1;
                        }
-                       memcpy(sort, avail_sorts[i], sizeof(*sort));
                        list_add_tail(&sort->list, list);
                        return 0;
                }