diff options
| author | H Hartley Sweeten <hartleys@visionengravers.com> | 2012-06-22 16:40:40 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-22 20:55:10 -0700 |
| commit | 6e891af85b4b697679f72c77ddbe19f853379f02 (patch) | |
| tree | db673a392bee4bd85c97758a05ab259f9b6c7a12 /drivers | |
| parent | cc04ac0fee72d55e59c2d9db19969bc2d74a9097 (diff) | |
| download | linux-6e891af85b4b697679f72c77ddbe19f853379f02.tar.bz2 | |
staging: comedi: ni_daq_700: refactor the pcmcia attach/detach
Move the pcmcia_disable_device() call where needed in the
pcmcia attach/detach and delete the dio700_release() function.
Move the logic of dio700_config() directly into the attach
function and properly return an error code when the config
fails.
Only set the pcmcia_cur_dev, used by the comedi_driver, if
the pcmcia attach is successful. Also, make sure to NULL it
in the detach.
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>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_daq_700.c | 39 |
1 files changed, 9 insertions, 30 deletions
diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c index c57300f89cfd..83016b411851 100644 --- a/drivers/staging/comedi/drivers/ni_daq_700.c +++ b/drivers/staging/comedi/drivers/ni_daq_700.c @@ -164,13 +164,6 @@ static struct comedi_driver driver_dio700 = { .offset = sizeof(struct dio700_board), }; -static void dio700_release(struct pcmcia_device *link) -{ - dev_dbg(&link->dev, "%s\n", __func__); - - pcmcia_disable_device(link); -} - static int dio700_pcmcia_config_loop(struct pcmcia_device *p_dev, void *priv_data) { @@ -180,50 +173,36 @@ static int dio700_pcmcia_config_loop(struct pcmcia_device *p_dev, return pcmcia_request_io(p_dev); } -static void dio700_config(struct pcmcia_device *link) +static int dio700_cs_attach(struct pcmcia_device *link) { int ret; - dev_dbg(&link->dev, "%s\n", __func__); - link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_AUDIO | CONF_AUTO_SET_IO; ret = pcmcia_loop_config(link, dio700_pcmcia_config_loop, NULL); - if (ret) { - dev_warn(&link->dev, "no configuration found\n"); + if (ret) goto failed; - } if (!link->irq) goto failed; ret = pcmcia_enable_device(link); - if (ret != 0) + if (ret) goto failed; - return; - -failed: - dev_dbg(&link->dev, "%s failed\n", __func__); - dio700_release(link); - -} - -static int dio700_cs_attach(struct pcmcia_device *link) -{ - dev_dbg(&link->dev, "%s\n", __func__); - pcmcia_cur_dev = link; - - dio700_config(link); - return 0; + +failed: + pcmcia_disable_device(link); + return ret; } static void dio700_cs_detach(struct pcmcia_device *link) { - dio700_release(link); + pcmcia_disable_device(link); + pcmcia_cur_dev = NULL; } static const struct pcmcia_device_id dio700_cs_ids[] = { |