iio: refactor info mask and ext_info attribute creation.

Introduce an enum to specify whether the attribute is separate or
shared.

Factor out the bitmap handling for loop into a separate function.

Tidy up error handling and add a NULL assignment to squish a false
positive warning from GCC.

Change ext_info shared type from boolean to enum and update in all
drivers.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h
index 05c1b74502a3..6be5ab864b1a 100644
--- a/drivers/iio/iio_core.h
+++ b/drivers/iio/iio_core.h
@@ -30,7 +30,7 @@ int __iio_add_chan_devattr(const char *postfix,
                                                 const char *buf,
                                                 size_t len),
                            u64 mask,
-                           bool generic,
+                           enum iio_shared_by shared_by,
                            struct device *dev,
                            struct list_head *attr_list);