[media] lirc: wire up .compat_ioctl to main ioctl handler

As pointed out (and tested) by Joris van Rantwijk, we do actually need
to wire up .compat_ioctl for 32-bit lirc userspace to work with 64-bit
lirc kernelspace. Do it. And add a check to make sure we get a valid
irctl in the ioctl handler.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/media/IR/ir-lirc-codec.c b/drivers/media/IR/ir-lirc-codec.c
index c6d5b3eb1325..20ac9a4ce522 100644
--- a/drivers/media/IR/ir-lirc-codec.c
+++ b/drivers/media/IR/ir-lirc-codec.c
@@ -231,6 +231,9 @@ static struct file_operations lirc_fops = {
         .owner          = THIS_MODULE,
         .write          = ir_lirc_transmit_ir,
         .unlocked_ioctl = ir_lirc_ioctl,
+#ifdef CONFIG_COMPAT
+        .compat_ioctl   = ir_lirc_ioctl,
+#endif
         .read           = lirc_dev_fop_read,
         .poll           = lirc_dev_fop_poll,
         .open           = lirc_dev_fop_open,