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 <linux@rasmusvillemoes.dk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 3b361ec..a1e0b9a 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -94,7 +94,7 @@
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 @@
wakeup_source_drop(ws);
wakeup_source_record(ws);
- kfree(ws->name);
+ kfree_const(ws->name);
kfree(ws);
}
EXPORT_SYMBOL_GPL(wakeup_source_destroy);