PM / wakeup: wakeup_source_create: use kstrdup_const

Using kstrdup_const allows us to save a little runtime memory (and a string copy) in the common case where name is a string literal. Signed-off-by: Rasmus Villemoes <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
mig · Sep 25, 2015 · 7236214 · 7236214
1 parent a6f5f0d
commit 7236214
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
@@ -94,7 +94,7 @@ struct wakeup_source *wakeup_source_create(const char *name)
 	if (!ws)
 		return NULL;
 
-	wakeup_source_prepare(ws, name ? kstrdup(name, GFP_KERNEL) : NULL);
+	wakeup_source_prepare(ws, name ? kstrdup_const(name, GFP_KERNEL) : NULL);
 	return ws;
 }
 EXPORT_SYMBOL_GPL(wakeup_source_create);
@@ -157,7 +157,7 @@ void wakeup_source_destroy(struct wakeup_source *ws)
 
 	wakeup_source_drop(ws);
 	wakeup_source_record(ws);
-	kfree(ws->name);
+	kfree_const(ws->name);
 	kfree(ws);
 }
 EXPORT_SYMBOL_GPL(wakeup_source_destroy);