diff options
Diffstat (limited to 'drivers/input/misc/uinput.c')
| -rw-r--r-- | drivers/input/misc/uinput.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 782df415e4d5..4eb9e4d94f46 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -272,6 +272,13 @@ static int uinput_create_device(struct uinput_device *udev) input_set_events_per_packet(dev, 60); } + if (test_bit(EV_FF, dev->evbit) && !udev->ff_effects_max) { + printk(KERN_DEBUG "%s: ff_effects_max should be non-zero when FF_BIT is set\n", + UINPUT_NAME); + error = -EINVAL; + goto fail1; + } + if (udev->ff_effects_max) { error = input_ff_create(dev, udev->ff_effects_max); if (error) |