1 files changed, 2 insertions, 1 deletions

diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 02b2d50cce4d..4a3cdf8f3813 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -189,7 +189,8 @@ static ssize_t brport_store(struct kobject * kobj,
 
         val = simple_strtoul(buf, &endp, 0);
         if (endp != buf) {
-                rtnl_lock();
+                if (!rtnl_trylock())
+                        return restart_syscall();
                 if (p->dev && p->br && brport_attr->store) {
                         spin_lock_bh(&p->br->lock);
                         ret = brport_attr->store(p, val);