Description of Problem:
When used with a tulip based PCMCIA card, loading the de4x5 module causes a 
crash.

Version-Release number of selected component (if applicable):
2.4.17-0.18, also reproducable with stock 7.2 kernel

How Reproducible:
100%

Steps to Reproduce:
1. Insert a tulip based PCMCIA card
2. rmmod tulip
3. insmod de4x5

Actual Results:
eth0: DC21143 at 0x4800 (PCI bus 6, device 0), h/w address 00:80:00:80:00:80,
eth0: Using generic MII device control. If the board doesn't operate,
please mail the following dump to the author:

MII device address: 0
MII CR:  3000
MII SR:  7809
MII ID0: 40
MII ID1: 6212
MII ANA: 1e1
MII ANC: 0
MII 16:  1000
MII 17:  1
MII 18:  0

      and requires IRQ10 (provided by PCI BIOS).
de4x5.c:V0.546 2001/02/22 davies.com
Unable to handle kernel paging request at virtual address 40025660
 printing eip:
40025660
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[zisofs_cleanup+1073894896/-1072693360]    Not tainted
EIP:    0010:[<40025660>]    Not tainted
EFLAGS: 00010286
EIP is at Using_Versions [] 0x4002565f
eax: 000000ff   ebx: c7cf0000   ecx: 000000fe   edx: c7cf05cb
esi: c7cf05c7   edi: c7cf0000   ebp: c47d3200   esp: c4817e20
ds: 0018   es: 0018   ss: 0018
Process dhcpcd (pid: 1386, stackpage=c4817000)
Stack: c88809f1 c47d3200 000000fe c7cf05cb c7cf0000 c7cf05c3 c7cf0000 c47d3200
       c88809d3 c47d3200 000000ff c7cf05c7 c7cf0000 c47d3200 c47d3200 000000fa
       c8880925 c47d3200 00000000 c7cf05c3 0087aa8d c7cf0000 c47d3200 ffffffff
Call Trace: [usbcore:usb_devfs_handle_Re9c5f87f+172701/209161695] de4x5_probe 
[de4x5] 0x6991
Call Trace: [<c88809f1>] de4x5_probe [de4x5] 0x6991
[usbcore:usb_devfs_handle_Re9c5f87f+172671/209161725] de4x5_probe [de4x5] 
0x6973
[<c88809d3>] de4x5_probe [de4x5] 0x6973
[usbcore:usb_devfs_handle_Re9c5f87f+172497/209161899] de4x5_probe [de4x5] 
0x68c5
[<c8880925>] de4x5_probe [de4x5] 0x68c5
[usbcore:usb_devfs_handle_Re9c5f87f+163482/209170914] de4x5_probe [de4x5] 
0x458e
[<c887e5ee>] de4x5_probe [de4x5] 0x458e
[usbcore:usb_devfs_handle_Re9c5f87f+154304/209180092] de4x5_probe [de4x5] 
0x21b4
[<c887c214>] de4x5_probe [de4x5] 0x21b4
[usbcore:usb_devfs_handle_Re9c5f87f+147859/209186537] de4x5_probe [de4x5] 0x887
[<c887a8e7>] de4x5_probe [de4x5] 0x887
[usbcore:usb_devfs_handle_Re9c5f87f+147311/209187085] de4x5_probe [de4x5] 0x663
[<c887a6c3>] de4x5_probe [de4x5] 0x663
[dev_open+66/160] dev_open [kernel] 0x42
[<c01cc622>] dev_open [kernel] 0x42
[dev_change_flags+79/272] dev_change_flags [kernel] 0x4f
[<c01cd73f>] dev_change_flags [kernel] 0x4f
[devinet_ioctl+820/1616] devinet_ioctl [kernel] 0x334
[<c01fdef4>] devinet_ioctl [kernel] 0x334
[sock_setsockopt+55/1552] sock_setsockopt [kernel] 0x37
[<c01c7247>] sock_setsockopt [kernel] 0x37
[packet_ioctl+865/944] packet_ioctl [kernel] 0x361
[<c020cee1>] packet_ioctl [kernel] 0x361
[sock_ioctl+30/48] sock_ioctl [kernel] 0x1e
[<c01c5d3e>] sock_ioctl [kernel] 0x1e
[sys_ioctl+535/560] sys_ioctl [kernel] 0x217
[<c0143ac7>] sys_ioctl [kernel] 0x217
[system_call+51/56] system_call [kernel] 0x33
[<c0106ef3>] system_call [kernel] 0x33


Code:  Bad EIP value.


Expected Results:


Additional Information: