1 files changed, 4 insertions, 3 deletions

diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index 411802bd4d37..746c2f4a5fa6 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -76,6 +76,7 @@
 #include <linux/netdevice.h>
 #include <linux/file.h>
 #include <linux/proc_fs.h>
+#include <linux/mutex.h>
 
 #include <net/sock.h>
 #include <net/af_unix.h>
@@ -169,7 +170,7 @@ static void maybe_unmark_and_push(struct sock *x)
 
 void unix_gc(void)
 {
-        static DECLARE_MUTEX(unix_gc_sem);
+        static DEFINE_MUTEX(unix_gc_sem);
         int i;
         struct sock *s;
         struct sk_buff_head hitlist;
@@ -179,7 +180,7 @@ void unix_gc(void)
          *      Avoid a recursive GC.
          */
 
-        if (down_trylock(&unix_gc_sem))
+        if (!mutex_trylock(&unix_gc_sem))
                 return;
 
         spin_lock(&unix_table_lock);
@@ -308,5 +309,5 @@ void unix_gc(void)
          */
 
         __skb_queue_purge(&hitlist);
-        up(&unix_gc_sem);
+        mutex_unlock(&unix_gc_sem);
 }