jvc cdrom drive

[Richard Kennedy]

Hi all, 
I have a JVC MP-CDX1 cdrom drive that came with my laptop which used to
work with ide-cs but stopped working with newer kernels.

I added its ident to ide-cs.c (see patch below) and the drive now is
detected and gets mounted when plugged in and seems to work correctly.

But when I eject the card, pccardctl eject 0, the laptop locks up
completely, there are no messages in the log, and the fan goes to full
speed so I guess the cpu is running at 100%.
Any ideas what's going wrong or how to debug it ? 
Is there anything else I need to patch to get this working ?

Thanks
Richard

card info :- 

PRODID_1="KME"
PRODID_2="KXLC005"
PRODID_3="00"
PRODID_4=""
MANFID=0032,2904
FUNCID=8

log messages on insert :- 

May  3 11:22:52 mininote kernel: pccard: PCMCIA card inserted into slot 0
May  3 11:22:52 mininote kernel: cs: memory probe 0xa0000000-0xa0ffffff: clean.
May  3 11:22:52 mininote kernel: pcmcia: registering new device pcmcia0.0
May  3 11:22:53 mininote kernel: hdc: UJDB130, ATAPI CD/DVD-ROM drive
May  3 11:22:53 mininote kernel: ide1 at 0x190-0x197,0x396 on irq 3
May  3 11:22:53 mininote kernel: ide-cs: hdc: Vpp = 0.0
May  3 11:22:54 mininote kernel: hdc: ATAPI 20X CD-ROM drive, 128kB Cache
May  3 11:22:54 mininote kernel: Uniform CD-ROM driver Revision: 3.20
May  3 11:23:04 mininote hald: mounted /dev/hdc on behalf of uid 500
May  3 11:23:34 mininote hald: unmounted /dev/hdc from '/media/FC_4 i386 ftp #1' on behalf of uid 500
May  3 11:24:17 mininote kernel: pccard: card ejected from slot 0
<< lockup happened here >>

patch
--- linux-2.6.21.1/drivers/ide/legacy/ide-cs.c.orig	2007-05-02 12:09:57.000000000 +0100
+++ linux-2.6.21.1/drivers/ide/legacy/ide-cs.c	2007-05-02 12:12:40.000000000 +0100
@@ -362,6 +362,7 @@
 	PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000),	/* I-O Data CFA */
 	PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001),	/* Mitsubishi CFA */
 	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
+	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),        /* KME KXLCOO5 JVC MP-CDX1 */
 	PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),	/* SanDisk CFA */
 	PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000),	/* Toshiba */
 	PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),