[cpia] Device is Busy

[Axe]

Anyone have a problem with attempting to drop pictures from a CPIA camera,
and it randomly locking /dev/video*?
For a few drops, it will work properly, but then poof... heh...it breaks..
Even though the program exits (I use gqcam), /dev/video* stays 'busy', and
you can't drop anymore frames.
When I try to unload the modules, I can unload cpia_usb, cpia_pp, and
parport.  But cpia and videodev won't unload due to getting a 'device is
busy' error.  The only way I can get this "fixed" is by rebooting the
machine.
I'm using RH7.2 kernel version 2.4.9-13 (This has happened with RH7.0 and
7.1 also).
If anyone has any ideas, or needs more info, I'd be glad to hear it.


This is the output from the messages file when I unload the three
above-mentioned modules:

Nov 13 21:42:05 gothic kernel: usb.c: deregistering driver cpia
Nov 13 21:42:05 gothic kernel:
cpia.c:cpia_unregister_camera_Rc7cb4e91(3243):/dev/video0 removed while
open, deferring video_unregister_device
Nov 13 21:42:05 gothic kernel: Unable to handle kernel paging request at
virtual address c888e65a
Nov 13 21:42:05 gothic kernel:  printing eip:
Nov 13 21:42:05 gothic kernel: c888e65a
Nov 13 21:42:05 gothic kernel: *pde = 014a9067
Nov 13 21:42:05 gothic kernel: *pte = 00000000
Nov 13 21:42:05 gothic kernel: Oops: 0000
Nov 13 21:42:05 gothic kernel: CPU:    0
Nov 13 21:42:05 gothic kernel: EIP:
0010:[sound:num_midis_Ra1eae7cf+243282/98532974]    Not tainted
Nov 13 21:42:05 gothic kernel: EIP:    0010:[<c888e65a>]    Not tainted
Nov 13 21:42:05 gothic kernel: EFLAGS: 00010286
Nov 13 21:42:05 gothic kernel: eax: c70d94bc   ebx: c78f2200   ecx: 00000000
edx: c70d94bc
Nov 13 21:42:05 gothic kernel: esi: c70d94b0   edi: c89c0000   ebp: c1cac000
esp: c1cadf10
Nov 13 21:42:05 gothic kernel: ds: 0018   es: 0018   ss: 0018
Nov 13 21:42:05 gothic kernel: Process gqcam (pid: 1626, stackpage=c1cad000)
Nov 13 21:42:05 gothic kernel: Stack: c78f2200 000b170a c887f707 c70d94b0
c89c0000 00000000 00000000 c78f2208
Nov 13 21:42:05 gothic kernel:        c78f2200 0004a400 40467008 c887ff0b
c78f2200 c1cac000 40467008 00000001
Nov 13 21:42:05 gothic kernel:        0004b000 c15d6250 ffffffea 00000000
0004a400 c887a091 c78f22c0 40467008
Nov 13 21:42:05 gothic kernel: Call Trace:
[sound:num_midis_Ra1eae7cf+182015/98594241] __insmod_cpia_S.text_L16504
[cpia] 0x26a7
Nov 13 21:42:05 gothic kernel: Call Trace: [<c887f707>]
__insmod_cpia_S.text_L16504 [cpia] 0x26a7
Nov 13 21:42:05 gothic kernel: [sound:num_midis_Ra1eae7cf+184067/98592189]
__insmod_cpia_S.text_L16504 [cpia] 0x2eab
Nov 13 21:42:05 gothic kernel: [<c887ff0b>] __insmod_cpia_S.text_L16504
[cpia] 0x2eab
Nov 13 21:42:05 gothic kernel: [sound:num_midis_Ra1eae7cf+159881/98616375]
__insmod_videodev_S.text_L2148 [videodev] 0x31
Nov 13 21:42:05 gothic kernel: [<c887a091>] __insmod_videodev_S.text_L2148
[videodev] 0x31
Nov 13 21:42:05 gothic kernel: [sys_read+149/204] sys_read [kernel] 0x95
Nov 13 21:42:05 gothic kernel: [<c0131b0d>] sys_read [kernel] 0x95
Nov 13 21:42:05 gothic kernel: [sys_mremap+50/76] sys_mremap [kernel] 0x32
Nov 13 21:42:05 gothic kernel: [<c0128646>] sys_mremap [kernel] 0x32
Nov 13 21:42:05 gothic kernel: [sys_mremap+66/76] sys_mremap [kernel] 0x42
Nov 13 21:42:05 gothic kernel: [<c0128656>] sys_mremap [kernel] 0x42
Nov 13 21:42:05 gothic kernel: [system_call+51/56] system_call [kernel] 0x33
Nov 13 21:42:06 gothic kernel: [<c0106e03>] system_call [kernel] 0x33
Nov 13 21:42:06 gothic kernel:
Nov 13 21:42:06 gothic kernel:
Nov 13 21:42:06 gothic kernel: Code:  Bad EIP value.