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authorH Hartley Sweeten <hartleys@visionengravers.com>2012-07-02 22:47:47 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-07-06 22:51:19 (GMT)
commitae6eba84efd2ccc214ed50e8b35bbc54cb50121b (patch)
tree14cff50dfea13e1e61a64b31149e90da12544f94
parent6d4ef6d6360193c6acd0d41a88ddd7034af286f3 (diff)
downloadlinux-fsl-qoriq-ae6eba84efd2ccc214ed50e8b35bbc54cb50121b.tar.xz
staging: comedi: das08_cs: refactor the pcmcia probe/remove
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>
-rw-r--r--drivers/staging/comedi/drivers/das08_cs.c38
1 files changed, 8 insertions, 30 deletions
diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c
index d02250e..f2f33e1 100644
--- a/drivers/staging/comedi/drivers/das08_cs.c
+++ b/drivers/staging/comedi/drivers/das08_cs.c
@@ -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;
-
-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;
+
+failed:
+ 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[] = {