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 <abbo...@mev.co.uk>
---
drivers/staging/comedi/comedi_buf.c | 4 +++-
drivers/staging/comedi/comedi_fops.c | 4 ++--
drivers/staging/comedi/comedi_internal.h | 2 +-
3 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/comedi/comedi_buf.c
b/drivers/staging/comedi/comedi_buf.c
index f295285..fa5d6d4 100644
--- a/drivers/staging/comedi/comedi_buf.c
+++ b/drivers/staging/comedi/comedi_buf.c
@@ -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;
diff --git a/drivers/staging/comedi/comedi_fops.c
b/drivers/staging/comedi/comedi_fops.c
index 997be8f..a7aef8a 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -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;
@@ -1556,7 +1556,7 @@ 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 |
diff --git a/drivers/staging/comedi/comedi_internal.h
b/drivers/staging/comedi/comedi_internal.h
index 36e7a99..3cc81de 100644
--- a/drivers/staging/comedi/comedi_internal.h
+++ b/drivers/staging/comedi/comedi_internal.h
@@ -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);
--
1.9.2
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