linux-kernel - [PATCH 3.4 003/176] iio: Fix IIO_EVENT_CODE_EXTRACT

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Message-Id: <1428569224-23820-3-git-send-email-lizf@kernel.org>
Date:	Thu,  9 Apr 2015 16:44:11 +0800
From:	lizf@...nel.org
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Cristina Ciocan <cristina.ciocan@...el.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Zefan Li <lizefan@...wei.com>
Subject: [PATCH 3.4 003/176] iio: Fix IIO_EVENT_CODE_EXTRACT_DIR bit mask

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

3.4.107-rc1 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: Zefan Li <lizefan@...wei.com>
---
 drivers/staging/iio/events.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/events.h b/drivers/staging/iio/events.h
index c25f0e3..a6f999c 100644
--- a/drivers/staging/iio/events.h
+++ b/drivers/staging/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)
 
-- 
1.9.1

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