svn commit: r188464 - head/sys/kern

[Sam Leffler]

Alexander Motin wrote:
> Author: mav
> Date: Tue Feb 10 23:22:29 2009
> New Revision: 188464
> URL: http://svn.freebsd.org/changeset/base/188464
>
> Log:
>   Check for device_set_devclass() errors and skip driver probe/attach if any.
>   Attach call without devclass set crashes the system.
>   
>   On resume AHCI driver sometimes tries to create duplicate adX device.
>   It is surely his own problem, but IMHO it is not a reason to crash here.
>   Other reasons are also possible.
>
>   
Please leave a comment in the code that this is basically a WAR for 
buggy drivers.

    Sam