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Subject: PATCH: IDE fix ide-disk inability to handle LBA only devices.
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: linux-kernel@vger.kernel.org
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Date: Mon, 20 Jun 2005 21:10:54 +0100
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Years old bug, has to be fixed for it8212 to work

Signed-off-by: Alan Cox <alan@redhat.com>

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.12/drivers/ide/ide-disk.c linux-2.6.12/drivers/ide/ide-disk.c
--- linux.vanilla-2.6.12/drivers/ide/ide-disk.c	2005-06-19 11:30:47.000000000 +0100
+++ linux-2.6.12/drivers/ide/ide-disk.c	2005-06-20 20:43:04.000000000 +0100
@@ -119,6 +119,10 @@
 {
 	unsigned long lba_sects, chs_sects, head, tail;
 
+	/* No non-LBA info .. so valid! */
+	if (id->cyls == 0)
+		return 1;
+		
 	/*
 	 * The ATA spec tells large drives to return
 	 * C/H/S = 16383/16/63 independent of their size.