X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fbase%2Fmodule.c;fp=kernel%2Fdrivers%2Fbase%2Fmodule.c;h=2a215780eda25c7c33ac44c136c4fadd36238ab8;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=db930d3ee31259f6a17b9dd33eb16caee4e12f5c;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/drivers/base/module.c b/kernel/drivers/base/module.c
index db930d3ee..2a215780e 100644
--- a/kernel/drivers/base/module.c
+++ b/kernel/drivers/base/module.c
@@ -24,10 +24,12 @@ static char *make_driver_name(struct device_driver *drv)
 
 static void module_create_drivers_dir(struct module_kobject *mk)
 {
-	if (!mk || mk->drivers_dir)
-		return;
+	static DEFINE_MUTEX(drivers_dir_mutex);
 
-	mk->drivers_dir = kobject_create_and_add("drivers", &mk->kobj);
+	mutex_lock(&drivers_dir_mutex);
+	if (mk && !mk->drivers_dir)
+		mk->drivers_dir = kobject_create_and_add("drivers", &mk->kobj);
+	mutex_unlock(&drivers_dir_mutex);
 }
 
 void module_add_driver(struct module *mod, struct device_driver *drv)