1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index d64d0290a7c7..9f2352bd8348 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -580,6 +580,9 @@ static long evdev_ioctl_compat(struct file *file, unsigned int cmd, unsigned lon
                                 if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSND(0)))
                                         bit_to_user(dev->snd, SND_MAX);
 
+                                if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSW(0)))
+                                        bit_to_user(dev->sw, SW_MAX);
+
                                 if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0))) {
                                         int len;
                                         if (!dev->name) return -ENOENT;