From 6fa99e1af1981d9a57cc73b5c2f05903f18413c1 Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Wed, 6 Jul 2016 06:01:13 -0300 Subject: [PATCH] [media] lirc_dev: place buffer allocation on separate function During the driver registration, move the buffer allocation on a separate function. Signed-off-by: Andi Shyti Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/lirc_dev.c | 57 +++++++++++++++++++++++++++------------------ 1 file changed, 34 insertions(+), 23 deletions(-) diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c index 92ae190..5716978 100644 --- a/drivers/media/rc/lirc_dev.c +++ b/drivers/media/rc/lirc_dev.c @@ -203,13 +203,41 @@ err_out: 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); - goto out_lock; - } - } - ir->chunk_size = ir->buf->chunk_size; + err = lirc_allocate_buffer(ir); + if (err) + goto out_lock; if (d->features == 0) d->features = LIRC_CAN_REC_LIRCCODE; -- 2.7.4