linux-kernel - [ 024/103] iio: Fix iio_channel_has

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Message-Id: <20130723220421.265515348@linuxfoundation.org>
Date:	Tue, 23 Jul 2013 15:25:35 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Jonathan Cameron <jic23@...nel.org>
Subject: [ 024/103] iio: Fix iio_channel_has_info

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexandre Belloni <alexandre.belloni@...e-electrons.com>

commit 1c297a66654a3295ae87e2b7f3724d214eb2b5ec upstream.

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.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 include/linux/iio/iio.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- 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)						\


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