linux-kernel - [PATCH 02/18] ide: fix ide_find

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Date:	Fri, 08 Feb 2008 01:44:34 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	linuxppc-dev@...abs.org,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 02/18] ide: fix ide_find_port()

* Instead of checking for '->io_ports[IDE_DATA_OFFSET] == 0' check for
  '->chipset == ide_unknown' when looking for an empty ide_hwifs[] slot.

* Do ide-pnp initialization after ide-generic when IDE is built-in
  (ide-pnp is the only user of ide_find_port() which needs such fixup).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
 drivers/ide/Makefile |    2 +-
 drivers/ide/ide.c    |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Index: b/drivers/ide/Makefile
===================================================================
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -36,9 +36,9 @@ ifeq ($(CONFIG_BLK_DEV_CMD640), y)
 endif
 
 obj-$(CONFIG_BLK_DEV_IDE)		+= cris/ ppc/
-obj-$(CONFIG_BLK_DEV_IDEPNP)		+= ide-pnp.o
 obj-$(CONFIG_IDE_H8300)			+= h8300/
 obj-$(CONFIG_IDE_GENERIC)		+= ide-generic.o
+obj-$(CONFIG_BLK_DEV_IDEPNP)		+= ide-pnp.o
 
 ide-cd_mod-y += ide-cd.o ide-cd_ioctl.o ide-cd_verbose.o
 
Index: b/drivers/ide/ide.c
===================================================================
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -259,7 +259,7 @@ ide_hwif_t * ide_find_port(unsigned long
 
 	for (i = 0; i < MAX_HWIFS; i++) {
 		hwif = &ide_hwifs[i];
-		if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
+		if (hwif->chipset == ide_unknown)
 			goto found;
 	}
 
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