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Commit 6fa99e1a authored by Andi Shyti's avatar Andi Shyti Committed by Mauro Carvalho Chehab
Browse files

[media] lirc_dev: place buffer allocation on separate function 



During the driver registration, move the buffer allocation on a
separate function.

Signed-off-by: default avatarAndi Shyti <andi.shyti@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 19994673

drivers/media/rc/lirc_dev.c

+34 −23
Original line number Diff line number Diff line
@@ -203,13 +203,41 @@ static int lirc_cdev_add(struct irctl *ir) 
	return retval;

}



int lirc_register_driver(struct lirc_driver *d)

static int lirc_allocate_buffer(struct irctl *ir)

{

	struct irctl *ir;

	int minor;

	int err;

	int bytes_in_key;

	unsigned int chunk_size;

	unsigned int buffer_size;

	struct lirc_driver *d = &ir->d;



	bytes_in_key = BITS_TO_LONGS(d->code_length) +

						(d->code_length % 8 ? 1 : 0);

	buffer_size = d->buffer_size ? d->buffer_size : BUFLEN / bytes_in_key;

	chunk_size  = d->chunk_size  ? d->chunk_size  : bytes_in_key;



	if (d->rbuf) {

		ir->buf = d->rbuf;

	} else {

		ir->buf = kmalloc(sizeof(struct lirc_buffer), GFP_KERNEL);

		if (!ir->buf)

			return -ENOMEM;



		err = lirc_buffer_init(ir->buf, chunk_size, buffer_size);

		if (err) {

			kfree(ir->buf);

			return err;

		}

	}

	ir->chunk_size = ir->buf->chunk_size;



	return 0;

}



int lirc_register_driver(struct lirc_driver *d)

{

	struct irctl *ir;

	int minor;

	int err;



	if (!d) {
@@ -314,26 +342,9 @@ int lirc_register_driver(struct lirc_driver *d) 
	/* some safety check 8-) */

	d->name[sizeof(d->name)-1] = '\0';



	bytes_in_key = BITS_TO_LONGS(d->code_length) +

			(d->code_length % 8 ? 1 : 0);

	buffer_size = d->buffer_size ? d->buffer_size : BUFLEN / bytes_in_key;

	chunk_size  = d->chunk_size  ? d->chunk_size  : bytes_in_key;



	if (d->rbuf) {

		ir->buf = d->rbuf;

	} else {

		ir->buf = kmalloc(sizeof(struct lirc_buffer), GFP_KERNEL);

		if (!ir->buf) {

			err = -ENOMEM;

			goto out_lock;

		}

		err = lirc_buffer_init(ir->buf, chunk_size, buffer_size);

		if (err) {

			kfree(ir->buf);

	err = lirc_allocate_buffer(ir);

	if (err)

		goto out_lock;

		}

	}

	ir->chunk_size = ir->buf->chunk_size;



	if (d->features == 0)

		d->features = LIRC_CAN_REC_LIRCCODE;