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| author | Lars-Peter Clausen <lars@metafoo.de> | 2011-12-19 15:23:49 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-12-22 13:38:10 -0800 |
| commit | 7933514043d42e69663a5123a53fab50eb0b4aba (patch) | |
| tree | 1563ca434350c338176f0c9e6cc4648882ad74d0 /drivers/staging/iio/iio_core.h | |
| parent | 869871b58c7f7c26ccf7a89cbe599e9b963b8e69 (diff) | |
| download | linux-3.10-7933514043d42e69663a5123a53fab50eb0b4aba.tar.gz linux-3.10-7933514043d42e69663a5123a53fab50eb0b4aba.tar.bz2 linux-3.10-7933514043d42e69663a5123a53fab50eb0b4aba.zip | |
staging:iio: Drop {mark,unmark}_in_use callbacks
These callbacks are currently used by the individual buffer implementations to
ensure that the request_update callback is not issued while the buffer is in use.
But the core already provides sufficient measures to prevent this from happening
in the first place. So it is safe to remove them.
There is one functional change due to this patch. Since the buffer is no longer
marked as in use when the chrdev is opened, it is now possible to enable the
buffer while it is opened. This did not work before, because mark_param_change
did fail if the buffer was marked as in use.
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>
Diffstat (limited to 'drivers/staging/iio/iio_core.h')
| -rw-r--r-- | drivers/staging/iio/iio_core.h | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/drivers/staging/iio/iio_core.h b/drivers/staging/iio/iio_core.h index ff27f1360d9..107cfb1cbb0 100644 --- a/drivers/staging/iio/iio_core.h +++ b/drivers/staging/iio/iio_core.h @@ -33,9 +33,6 @@ int __iio_add_chan_devattr(const char *postfix, #ifdef CONFIG_IIO_BUFFER struct poll_table_struct; -int iio_chrdev_buffer_open(struct iio_dev *indio_dev); -void iio_chrdev_buffer_release(struct iio_dev *indio_dev); - unsigned int iio_buffer_poll(struct file *filp, struct poll_table_struct *wait); ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf, @@ -47,14 +44,6 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf, #else -static inline int iio_chrdev_buffer_open(struct iio_dev *indio_dev) -{ - return 0; -} - -static inline void iio_chrdev_buffer_release(struct iio_dev *indio_dev) -{} - #define iio_buffer_poll_addr NULL #define iio_buffer_read_first_n_outer_addr NULL |