From 6efd936046b123303ace4330fd2f26195ad7b1c4 Mon Sep 17 00:00:00 2001
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Mon, 27 Jun 2005 15:24:22 -0700
Subject: [PATCH] ide: fix ide-disk inability to handle LBA only devices.

Years old bug, has to be fixed for it8212 to work

Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 drivers/ide/ide-disk.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'drivers/ide')

diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index d6f934886b0..f9c1acb4ed6 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -119,6 +119,10 @@ static int lba_capacity_is_ok (struct hd_driveid *id)
 {
 	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.
-- 
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