Tidy up the local variables so that the comedi_cmd is accessed as a pointer
instead of getting to it from the comedi_async pointer.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/mite.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/comedi/drivers/mite.c
b/drivers/staging/comedi/drivers/mite.c
index c12806e..19c029a 100644
--- a/drivers/staging/comedi/drivers/mite.c
+++ b/drivers/staging/comedi/drivers/mite.c
@@ -562,21 +562,19 @@ int mite_sync_output_dma(struct mite_channel *mite_chan,
struct comedi_subdevice *s)
{
struct comedi_async *async = s->async;
- int count;
+ struct comedi_cmd *cmd = &async->cmd;
+ u32 stop_count = cmd->stop_arg * cfc_bytes_per_scan(s);
+ unsigned int old_alloc_count = async->buf_read_alloc_count;
u32 nbytes_ub, nbytes_lb;
- unsigned int old_alloc_count;
- u32 stop_count = async->cmd.stop_arg * cfc_bytes_per_scan(s);
+ int count;
- old_alloc_count = async->buf_read_alloc_count;
/* read alloc as much as we can */
comedi_buf_read_alloc(s, async->prealloc_bufsz);
nbytes_lb = mite_bytes_read_from_memory_lb(mite_chan);
- if (async->cmd.stop_src == TRIG_COUNT &&
- (int)(nbytes_lb - stop_count) > 0)
+ if (cmd->stop_src == TRIG_COUNT && (int)(nbytes_lb - stop_count) > 0)
nbytes_lb = stop_count;
nbytes_ub = mite_bytes_read_from_memory_ub(mite_chan);
- if (async->cmd.stop_src == TRIG_COUNT &&
- (int)(nbytes_ub - stop_count) > 0)
+ if (cmd->stop_src == TRIG_COUNT && (int)(nbytes_ub - stop_count) > 0)
nbytes_ub = stop_count;
if ((int)(nbytes_ub - old_alloc_count) > 0) {
dev_warn(s->device->class_dev, "mite: DMA underrun\n");
--
1.9.2
_______________________________________________
devel mailing list
de...@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
