V4L/DVB: IR: Allow not to compile keymaps in

Currently, ir device registration fails if keymap requested by driver is not found.
Fix that by always compiling in the empty keymap, and using it as a failback.

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/include/media/ir-core.h b/include/media/ir-core.h
index 513e60dd1010..197d05aa83dc 100644
--- a/include/media/ir-core.h
+++ b/include/media/ir-core.h
@@ -110,8 +110,12 @@ static inline int ir_input_register(struct input_dev *dev,
                 return -EINVAL;
 
         ir_codes = get_rc_map(map_name);
-        if (!ir_codes)
-                return -EINVAL;
+        if (!ir_codes) {
+                ir_codes = get_rc_map(RC_MAP_EMPTY);
+
+                if (!ir_codes)
+                        return -EINVAL;
+        }
 
         rc = __ir_input_register(dev, ir_codes, props, driver_name);
         if (rc < 0)