1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/futex.c b/kernel/futex.c
index 7b54a672d0ad..c7130f86106c 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -39,6 +39,7 @@
 #include <linux/mount.h>
 #include <linux/pagemap.h>
 #include <linux/syscalls.h>
+#include <linux/signal.h>
 
 #define FUTEX_HASHBITS (CONFIG_BASE_SMALL ? 4 : 8)
 
@@ -654,7 +655,7 @@ static int futex_fd(unsigned long uaddr, int signal)
         int ret, err;
 
         ret = -EINVAL;
-        if (signal < 0 || signal > _NSIG)
+        if (!valid_signal(signal))
                 goto out;
 
         ret = get_unused_fd();