staging: comedi: cb_pcidas64: fix request_irq() warn

staging: comedi: cb_pcidas64: fix request_irq() warn

request_irq() wont accept a name which contains slash so we need to
repalce it with something else -- otherwise it will trigger a warning
and the entry in /proc/irq/ will not be created
since the .name might be used by userspace and we don't want to break
userspace, so we are changing the parameters passed to request_irq()

[    1.565966] name 'pci-das6402/16'
[    1.566149] WARNING: CPU: 0 PID: 184 at fs/proc/generic.c:180 __xlate_proc_name+0x93/0xb0
[    1.568923] RIP: 0010:__xlate_proc_name+0x93/0xb0
[    1.574200] Call Trace:
[    1.574722]  proc_mkdir+0x18/0x20
[    1.576629]  request_threaded_irq+0xfe/0x160
[    1.576859]  auto_attach+0x60a/0xc40 [cb_pcidas64]

Suggested-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Link: https://lore.kernel.org/r/20210315195814.4692-1-ztong0001@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>