From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Sun, 15 Jun 2008 19:00:23 +0000 (+0200)
Subject: ide-pmac: bugfix for media-bay support rework
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c1a8e39819bd6797ee2b82b88517268d39921b03;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

ide-pmac: bugfix for media-bay support rework

Fix bug introduced by:

commit 2dde7861afa23cd59db83515cb0b810b92b220aa
Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date:   Fri Apr 18 00:46:23 2008 +0200

    ide: rework PowerMac media-bay support (take 2)
...

[ Yeah, I suck. ]

bay->cd_index shouldn't be changed if IDE devices are not present
or retry operations won't happen.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c
index 82add26cc665..c34bdf852e32 100644
--- a/drivers/macintosh/mediabay.c
+++ b/drivers/macintosh/mediabay.c
@@ -556,7 +556,8 @@ static void media_bay_step(int i)
 				printk("mediabay %d, registering IDE...\n", i);
 				pmu_suspend();
 				ide_port_scan(bay->cd_port);
-				bay->cd_index = bay->cd_port->index;
+				if (bay->cd_port->present)
+					bay->cd_index = bay->cd_port->index;
 				pmu_resume();
 			}
 			if (bay->cd_index == -1) {