linux-kernel - sbpcd.c: fix check_region to request

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Date:	Tue, 12 Sep 2006 00:22:13 -0700
From:	Hil <ubuntu@...cast.net>
To:	"Andrew J. Kroll" <ag784@...enet.buffalo.edu>,
	kernel-janitor-discuss@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Cc:	Eberhard Moenkeberg <emoenke@...g.de>
Subject: sbpcd.c: fix check_region to request_region

I looked at Linux Kernel Janitor project. There is a request of fixing
the old check_region function to request_region function. I did a grep
on the source tree and found several check_region. I will continue
fixing them after this patch is accepted. Please tell me if I'm doing
the submission correctly.

ChangeLog

- The file needs to be patched because it used deprecated check_region
function

- The check_region in the file simply checks if the region of memory is
available. I replaced that line with request_region followed by
release_region to make the check

- I do not have testing result available. I am sending this email to the
maintainer for testing. The maintainer probably has the specific CD-ROMs
to test my patch.

The kernel version for the patch is 2.6.18-rc6


--- linux-2.6.17/drivers/cdrom/sbpcd.c~	2006-09-11 14:19:53.000000000
-0700
+++ linux-2.6.17/drivers/cdrom/sbpcd.c	2006-09-11 23:47:48.000000000
-0700
@@ -5671,11 +5671,12 @@ int __init sbpcd_init(void)
 	{
 		addr[1]=sbpcd[port_index];
 		if (addr[1]==0) break;
-		if (check_region(addr[1],4))
+		if (!request_region(addr[1],4,major_name))
 		{
 			msg(DBG_INF,"check_region: %03X is not free.\n",addr[1]);
 			continue;
 		}
+		release_region(addr[1],4);
 		if (sbpcd[port_index+1]==2) type=str_sp;
 		else if (sbpcd[port_index+1]==1) type=str_sb;
 		else if (sbpcd[port_index+1]==3) type=str_t16;

Signed-off-by: Hil Liao <ubuntu@...cast.net>

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