iio: Fix iio_channel_has_info

Since the info_mask split, iio_channel_has_info() is not working correctly.
info_mask_separate and info_mask_shared_by_type, it is not possible to compare
them directly with the iio_chan_info_enum enum. Correct that bit using the BIT()
macro.

Cc: <stable@vger.kernel.org> # 3.10.x
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 8d171f427632..3d35b7023591 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -211,8 +211,8 @@ struct iio_chan_spec {
 static inline bool iio_channel_has_info(const struct iio_chan_spec *chan,
         enum iio_chan_info_enum type)
 {
-        return (chan->info_mask_separate & type) |
-               (chan->info_mask_shared_by_type & type);
+        return (chan->info_mask_separate & BIT(type)) |
+               (chan->info_mask_shared_by_type & BIT(type));
 }
 
 #define IIO_ST(si, rb, sb, sh)                                          \