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From: Jeff Garzik <jeff@garzik.org>
To: Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-ide@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: [git patches] libata fix
Date: Thu, 8 Apr 2010 12:58:49 -0400	[thread overview]
Message-ID: <20100408165848.GA14360@havoc.gtf.org> (raw)


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)

             reply	other threads:[~2010-04-08 16:58 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-08 16:58 Jeff Garzik [this message]
  -- strict thread matches above, loose matches on Subject: below --
2007-05-29 22:06 Jeff Garzik
2006-08-03 21:57 Jeff Garzik
2005-12-13  5:32 Jeff Garzik

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