linux-kernel - [PATCH 1/1] parport: parport_serial, don't bind netmos ibm 0299

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Date:	Mon,  9 Feb 2009 10:28:14 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, Jiri Slaby <jirislaby@...il.com>
Subject: [PATCH 1/1] parport: parport_serial, don't bind netmos ibm 0299

Andrew, one more netmos 9835 patch, I though parport_serial binds only
SERIAL_OTHER pci subclass devices which was apparently wrong assumption.
Please apply.

--

Since netmos 9835 with subids 0x1014(IBM):0x0299 is now bound with
serial/8250_pci, because it has no parallel ports and subdevice
id isn't in the expected form, return -ENODEV from probe function.

This is performed in netmos preinit_hook.

Signed-off-by: Jiri Slaby <jirislaby@...il.com>
---
 drivers/parport/parport_serial.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c
index 101ed49..032db81 100644
--- a/drivers/parport/parport_serial.c
+++ b/drivers/parport/parport_serial.c
@@ -64,6 +64,11 @@ struct parport_pc_pci {
 
 static int __devinit netmos_parallel_init(struct pci_dev *dev, struct parport_pc_pci *card, int autoirq, int autodma)
 {
+	/* the rule described below doesn't hold for this device */
+	if (dev->device == PCI_DEVICE_ID_NETMOS_9835 &&
+			dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
+			dev->subsystem_device == 0x0299)
+		return -ENODEV;
 	/*
 	 * Netmos uses the subdevice ID to indicate the number of parallel
 	 * and serial ports.  The form is 0x00PS, where <P> is the number of
-- 
1.6.1.2

--
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