perf srccode: Use list_move() instead of equivalent list_del() + list…

…_add() sequence

Using list_move() instead of list_del() + list_add(), shorter,
equivalent.

Reported-by: Hulk Robot <[email protected]>
Signed-off-by: Zou Wei <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

tools/perf/util/srccode.c

@@ -97,8 +97,7 @@ static struct srcfile *find_srcfile(char *fn)
 	hlist_for_each_entry (h, &srcfile_htab[hval], hash_nd) {
 		if (!strcmp(fn, h->fn)) {
 			/* Move to front */
-			list_del(&h->nd);
-			list_add(&h->nd, &srcfile_list);
+			list_move(&h->nd, &srcfile_list);
 			return h;
 		}
 	}