1 files changed, 14 insertions, 1 deletions

diff --git a/kernel/module.c b/kernel/module.c
index 45e01cb60101..e2d09d604ca0 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -34,10 +34,10 @@
 #include <linux/err.h>
 #include <linux/vermagic.h>
 #include <linux/notifier.h>
+#include <linux/sched.h>
 #include <linux/stop_machine.h>
 #include <linux/device.h>
 #include <linux/string.h>
-#include <linux/sched.h>
 #include <linux/mutex.h>
 #include <linux/unwind.h>
 #include <asm/uaccess.h>
@@ -790,6 +790,19 @@ static struct module_attribute refcnt = {
         .show = show_refcnt,
 };
 
+void module_put(struct module *module)
+{
+        if (module) {
+                unsigned int cpu = get_cpu();
+                local_dec(&module->ref[cpu].count);
+                /* Maybe they're waiting for us to drop reference? */
+                if (unlikely(!module_is_live(module)))
+                        wake_up_process(module->waiter);
+                put_cpu();
+        }
+}
+EXPORT_SYMBOL(module_put);
+
 #else /* !CONFIG_MODULE_UNLOAD */
 static void print_unload_info(struct seq_file *m, struct module *mod)
 {