[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>

diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index d6f9348..f9c1acb 100644 (file)
--- 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.