linux-kernel - [PATCH 3.12 32/66] iio: Fix IIO_EVENT_CODE_EXTRACT

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Message-Id: <7abd18f7bad812dbab0bca2492d55a9800dcd479.1417878427.git.jslaby@suse.cz>
Date:	Sat,  6 Dec 2014 16:07:24 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Cristina Ciocan <cristina.ciocan@...el.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 32/66] iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask

From: Cristina Ciocan <cristina.ciocan@...el.com>

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

===============

commit ccf54555da9a5e91e454b909ca6a5303c7d6b910 upstream.

The direction field is set on 7 bits, thus we need to AND it with 0111 111 mask
in order to retrieve it, that is 0x7F, not 0xCF as it is now.

Fixes: ade7ef7ba (staging:iio: Differential channel handling)
Signed-off-by: Cristina Ciocan <cristina.ciocan@...el.com>
Signed-off-by: Jonathan Cameron <jic23@...nel.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 include/linux/iio/events.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/iio/events.h b/include/linux/iio/events.h
index 13ce220c7003..593ae7ce07c7 100644
--- a/include/linux/iio/events.h
+++ b/include/linux/iio/events.h
@@ -90,7 +90,7 @@ enum iio_event_direction {
 
 #define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
 
-#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xCF)
+#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0x7F)
 
 #define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
 
-- 
2.1.3

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