V4L/DVB (13537): ir: Prepare the code for dynamic keycode table allocation

Currently, the IR table is initialized by calling ir_input_init(). However,
this function doesn't return any error code, nor has a function to be called
when de-initializing the IR's.

Change the return argment to integer and make sure that each driver will
handle the error code. Also adds a function to free any resources that may
be allocating there: ir_input_free().

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

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/media/common/ir-functions.c b/drivers/media/common/ir-functions.c
index 29885c2893d2..b31bd27da374 100644
--- a/drivers/media/common/ir-functions.c
+++ b/drivers/media/common/ir-functions.c
@@ -54,11 +54,13 @@ static void ir_input_key_event(struct input_dev *dev, struct ir_input_state *ir)
 
 /* -------------------------------------------------------------------------- */
 
-void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
+int ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
                    int ir_type, struct ir_scancode_table *ir_codes)
 {
         ir->ir_type = ir_type;
 
+        /* FIXME: Add the proper code to dynamically allocate IR table */
+
         ir_set_keycode_table(dev, ir_codes);
 
         clear_bit(0, dev->keybit);
@@ -66,9 +68,17 @@ void ir_input_init(struct input_dev *dev, struct ir_input_state *ir,
         set_bit(EV_KEY, dev->evbit);
         if (repeat)
                 set_bit(EV_REP, dev->evbit);
+
+        return 0;
 }
 EXPORT_SYMBOL_GPL(ir_input_init);
 
+void ir_input_free(struct input_dev *input_dev)
+{
+        /* FIXME: Add the proper code to free allocated resources */
+}
+EXPORT_SYMBOL_GPL(ir_input_free);
+
 void ir_input_nokey(struct input_dev *dev, struct ir_input_state *ir)
 {
         if (ir->keypressed) {