Hi all,
I am trying to use the "w83977af_ir.o" driver in linux version 2.2.15pre17.
Now, when I load the driver like so
> bash# rmmod serial
> bash# modprobe w83977af_ir
then modprobe locks up. If you switch to another console
and do lsmod, you can see the module w83977af_ir listed,
but it says 'uninitialised' immediately after this.
I worked out by inserting printk statements that function
w83977af_open() in file drivers/net/irda/w83977af_ir.c
was making a call to function register_netdev() on line 261.
However the call to function register_netdev() never returned.
Function w83977af_open() calls function rtnl_lock(), just
before the call to register_netdev(). But within function
register_netdev() there is yet another call to rtnl_lock().
I think this may be causing the hang.
I modified file w83977af_ir.c as indicated in the patch below.
Now the driver loads without hanging.
bash$ diff -C 2 w83977af_ir.c~ w83977af_ir.c
*** w83977af_ir.c~ Tue Apr 11 17:34:33 2000
--- w83977af_ir.c Tue Apr 11 18:20:27 2000
***************
*** 258,264 ****
dev->get_stats = w83977af_net_get_stats;
! rtnl_lock();
err = register_netdev(dev);
! rtnl_unlock();
if (err) {
ERROR(__FUNCTION__ "(), register_netdev() failed!\n");
--- 258,264 ----
dev->get_stats = w83977af_net_get_stats;
! //rtnl_lock();
err = register_netdev(dev);
! //rtnl_unlock();
if (err) {
ERROR(__FUNCTION__ "(), register_netdev() failed!\n");
bash$
best regards
Robbie Dinn [EMAIL PROTECTED]
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