[PATCH 495/524] staging: iio: ring_sw Fix pointer arithmetic for 64bit arches by using phys_addr_t
Greg Kroah-Hartman
gregkh at suse.de
Thu Aug 5 22:24:38 UTC 2010
From: Jonathan Cameron <jic23 at cam.ac.uk>
Signed-off-by: Jonathan Cameron <jic23 at cam.ac.uk>
Acked-by: Randy Dunlap <randy.dunlap at oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>
---
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 9b3598e..e2f01c6 100644
--- a/drivers/staging/iio/ring_sw.c
+++ b/drivers/staging/iio/ring_sw.c
@@ -478,7 +478,7 @@ void iio_sw_trigger_bh_to_ring(struct work_struct *work_s)
/* Guaranteed to be aligned with 8 byte boundary */
if (st->indio_dev->scan_timestamp)
- *(s64 *)(((u32)data + len
+ *(s64 *)(((phys_addr_t)data + len
+ sizeof(s64) - 1) & ~(sizeof(s64) - 1))
= st->last_timestamp;
st->indio_dev->ring->access.store_to(st->indio_dev->ring,
--
1.7.1
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