Re: [PATCH] drivers/base/driver.c : driver_unregister

[Russell King]

On Sat, Dec 11, 2004 at 07:54:32PM +0100, Arne Caspari wrote:
> I think the meaning of this patch is obvious: In driver_unregister, the 
> bus_remove_driver function call was called outside the driver unload 
> semaphore which should obviously protect it.

No.  The semaphore is there to ensure that the function does not
return until the driver structure has a use count of zero.  If you
tested your patch, you'd find that your change would deadlock on
the locked semaphore.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 PCMCIA      - http://pcmcia.arm.linux.org.uk/
                 2.6 Serial core
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