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, 7 insertions, 1 deletions

diff --git a/drivers/media/video/cx231xx/cx231xx-input.c b/drivers/media/video/cx231xx/cx231xx-input.c
index 58dd39bc6787..cd135f01b9c1 100644
--- a/drivers/media/video/cx231xx/cx231xx-input.c
+++ b/drivers/media/video/cx231xx/cx231xx-input.c
@@ -197,7 +197,11 @@ int cx231xx_ir_init(struct cx231xx *dev)
 	usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
 	strlcat(ir->phys, "/input0", sizeof(ir->phys));
 
-	ir_input_init(input_dev, &ir->ir, IR_TYPE_OTHER, dev->board.ir_codes);
+	err = ir_input_init(input_dev, &ir->ir, IR_TYPE_OTHER,
+			    dev->board.ir_codes);
+	if (err < 0)
+		goto err_out_free;
+
 	input_dev->name = ir->name;
 	input_dev->phys = ir->phys;
 	input_dev->id.bustype = BUS_USB;
@@ -222,6 +226,7 @@ err_out_stop:
 	cx231xx_ir_stop(ir);
 	dev->ir = NULL;
 err_out_free:
+	ir_input_free(input_dev);
 	input_free_device(input_dev);
 	kfree(ir);
 	return err;
@@ -236,6 +241,7 @@ int cx231xx_ir_fini(struct cx231xx *dev)
 		return 0;
 
 	cx231xx_ir_stop(ir);
+	ir_input_free(ir->input);
 	input_unregister_device(ir->input);
 	kfree(ir);