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staging: comedi: das08_cs: refactor the pcmcia probe/remove

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Move the pcmcia_disable_device() call where needed in the pcmcia
probe/remove and delete the das08_pcmcia_release() function.

Move the logic of the das08_pcmcia_config() directly into the
probe function and properly return an error code when the config
fails.

Only set cur_dev, used by the comedi_driver, if the pcmcia probe
is successful. Also, make sure to NULL it in the remove.

Remove all the kernel messages in the pcmcia support code. They
are just added noise.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-07-02 15:47:47 -07:00 committed by Greg Kroah-Hartman
parent 6d4ef6d636
commit ae6eba84ef
1 changed files with 8 additions and 30 deletions
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38
drivers/staging/comedi/drivers/das08_cs.c
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@ -104,12 +104,6 @@ static int das08_cs_attach(struct comedi_device *dev,
return das08_common_attach(dev, iobase);
}
static void das08_pcmcia_release(struct pcmcia_device *link)
{
dev_dbg(&link->dev, "das08_pcmcia_release\n");
pcmcia_disable_device(link);
}
static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev,
void *priv_data)
{
@ -119,19 +113,15 @@ static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev,
return pcmcia_request_io(p_dev);
}
static void das08_pcmcia_config(struct pcmcia_device *link)
static int das08_pcmcia_attach(struct pcmcia_device *link)
{
int ret;
dev_dbg(&link->dev, "das08_pcmcia_config\n");
link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
ret = pcmcia_loop_config(link, das08_pcmcia_config_loop, NULL);
if (ret) {
dev_warn(&link->dev, "no configuration found\n");
if (ret)
goto failed;
}
if (!link->irq)
goto failed;
@ -140,30 +130,18 @@ static void das08_pcmcia_config(struct pcmcia_device *link)
if (ret)
goto failed;
return;
cur_dev = link;
return 0;
failed:
das08_pcmcia_release(link);
}
static int das08_pcmcia_attach(struct pcmcia_device *link)
{
dev_dbg(&link->dev, "das08_pcmcia_attach()\n");
cur_dev = link;
das08_pcmcia_config(link);
return 0;
pcmcia_disable_device(link);
return ret;
}
static void das08_pcmcia_detach(struct pcmcia_device *link)
{
dev_dbg(&link->dev, "das08_pcmcia_detach\n");
das08_pcmcia_release(link);
pcmcia_disable_device(link);
cur_dev = NULL;
}
static const struct pcmcia_device_id das08_cs_id_table[] = {