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From: Jeff Garzik on 8 Apr 2010 13:00

Please pull from 'upstream-linus' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git upstream-linus

to receive the following updates:

include/linux/ata.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

Mark Lord (1):
libata: Fix accesses at LBA28 boundary (old bug, but nasty) (v2)

diff --git a/include/linux/ata.h b/include/linux/ata.h
index b4c85e2..700c5b9 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -1025,8 +1025,8 @@ static inline int ata_ok(u8 status)

static inline int lba_28_ok(u64 block, u32 n_block)
{
- /* check the ending block number */
- return ((block + n_block) < ((u64)1 << 28)) && (n_block <= 256);
+ /* check the ending block number: must be LESS THAN 0x0fffffff */
+ return ((block + n_block) < ((1 << 28) - 1)) && (n_block <= 256);
}

static inline int lba_48_ok(u64 block, u32 n_block)
--
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