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authorJonathan Cameron <jic23@cam.ac.uk>2010-05-04 14:43:11 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-11 11:36:06 -0700
commit8474ddd7cba04c2e8d8691abda32ae0f4a684137 (patch)
tree823b54d3fd0d47e25f68b185c2f6fa34e857842a /drivers
parent3bf877c1cc0d17ef471f21ae319fcb9c9211df61 (diff)
downloadop-kernel-dev-8474ddd7cba04c2e8d8691abda32ae0f4a684137.zip
op-kernel-dev-8474ddd7cba04c2e8d8691abda32ae0f4a684137.tar.gz
staging:iio:ring_sw: Fix incorrect test on successful read of last value, causes infinite loop
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/staging/iio/ring_sw.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/iio/ring_sw.c b/drivers/staging/iio/ring_sw.c
index f8de45d..5ee3e45 100644
--- a/drivers/staging/iio/ring_sw.c
+++ b/drivers/staging/iio/ring_sw.c
@@ -295,7 +295,7 @@ 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);
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