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Message-Id: <1272310281-7418-18-git-send-email-jic23@cam.ac.uk>
Date:	Mon, 26 Apr 2010 20:31:19 +0100
From:	Jonathan Cameron <jic23@....ac.uk>
To:	iio-linux@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, gregkh@...e.de,
	Jonathan Cameron <jic23@....ac.uk>
Subject: [PATCH 17/19] staging:iio:ring_sw: Fix incorrect test on successful read of last value, causes infinite loop

Signed-off-by: Jonathan Cameron <jic23@....ac.uk>
---
 drivers/staging/iio/ring_sw.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/iio/ring_sw.c b/drivers/staging/iio/ring_sw.c
index 4e5134c..8d2f7cd 100644
--- a/drivers/staging/iio/ring_sw.c
+++ b/drivers/staging/iio/ring_sw.c
@@ -297,7 +297,7 @@ again:
 		return -EAGAIN;
 	memcpy(data, last_written_p_copy, ring->buf.bpd);
 
-	if (unlikely(ring->last_written_p >= last_written_p_copy))
+	if (unlikely(ring->last_written_p != last_written_p_copy))
 		goto again;
 
 	iio_unmark_sw_rb_in_use(&ring->buf);
-- 
1.6.4.4

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