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staging:iio: Drop buffer busy flag

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The flag is only cleared, never set or tested, so it is safe to remove it.

Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Lars-Peter Clausen 2011-12-19 15:23:46 +01:00 committed by Greg Kroah-Hartman
parent bb01443e2c
commit 68bc730432
2 changed files with 0 additions and 3 deletions
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2
drivers/staging/iio/buffer.h
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@ -79,7 +79,6 @@ struct iio_buffer_access_funcs {
* created from the iio_chan_info array.
* @pollq: [INTERN] wait queue to allow for polling on the buffer.
* @stufftoread: [INTERN] flag to indicate new data.
* @flags: [INTERN] file ops related flags including busy flag.
* @demux_list: [INTERN] list of operations required to demux the scan.
* @demux_bounce: [INTERN] buffer for doing gather from incoming scan.
**/
@ -95,7 +94,6 @@ struct iio_buffer {
struct attribute_group scan_el_group;
wait_queue_head_t pollq;
bool stufftoread;
unsigned long flags;
const struct attribute_group *attrs;
struct list_head demux_list;
unsigned char *demux_bounce;

1
drivers/staging/iio/industrialio-buffer.c
View file

@ -80,7 +80,6 @@ void iio_chrdev_buffer_release(struct iio_dev *indio_dev)
if (!rb)
return;
clear_bit(IIO_BUSY_BIT_POS, &rb->flags);
if (rb->access->unmark_in_use)
rb->access->unmark_in_use(rb);
}