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staging: comedi: pass subdevice to comedi_buf_reset()

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Change the parameters of `comedi_buf_reset()` to pass a pointer to the
comedi subdevice instead of a pointer to the "async" structure belonging
to the subdevice.

The main aim at the moment is to replace all the `struct comedi_async *`
parameters with `struct comedi_subdevice *` parameters in the comedi
driver API.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ian Abbott 2014-05-06 13:12:10 +01:00 committed by Greg Kroah-Hartman
parent e9edef3a54
commit fcc18a9aa2
3 changed files with 6 additions and 4 deletions
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4
drivers/staging/comedi/comedi_buf.c
View File

@ -222,8 +222,10 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
return 0;
}
void comedi_buf_reset(struct comedi_async *async)
void comedi_buf_reset(struct comedi_subdevice *s)
{
struct comedi_async *async = s->async;
async->buf_write_alloc_count = 0;
async->buf_write_count = 0;
async->buf_read_alloc_count = 0;

4
drivers/staging/comedi/comedi_fops.c
View File

@ -583,7 +583,7 @@ static void do_become_nonbusy(struct comedi_device *dev,
comedi_set_subdevice_runflags(s, SRF_RUNNING, 0);
if (async) {
comedi_buf_reset(async);
comedi_buf_reset(s);
async->inttrig = NULL;
kfree(async->cmd.chanlist);
async->cmd.chanlist = NULL;
@ -1557,7 +1557,7 @@ static int do_cmd_ioctl(struct comedi_device *dev,
goto cleanup;
}
comedi_buf_reset(async);
comedi_buf_reset(s);
async->cb_mask =
COMEDI_CB_EOA | COMEDI_CB_BLOCK | COMEDI_CB_ERROR |

2
drivers/staging/comedi/comedi_internal.h
View File

@ -15,7 +15,7 @@ void comedi_free_subdevice_minor(struct comedi_subdevice *s);
int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
unsigned long new_size);
void comedi_buf_reset(struct comedi_async *async);
void comedi_buf_reset(struct comedi_subdevice *s);
bool comedi_buf_is_mmapped(struct comedi_async *async);
void comedi_buf_map_get(struct comedi_buf_map *bm);
int comedi_buf_map_put(struct comedi_buf_map *bm);