Re: [PATCH] fix rmmod sbp2 hang in 2.6.7

[Russell King]

On Wed, Jul 14, 2004 at 05:29:57PM +0800, Hugang wrote:
> On Wed, 14 Jul 2004 10:24:17 +0100
> Russell King <rmk+lkml@xxxxxxxxxxxxxxxx> wrote:
> | This down+up prevents drivers from being unloaded until there are no
> | references to their struct device_driver.  By removing this, you open
> | the very real possibility for an oops to occur.
> Yes, I agree with you. When sbp2 is using the module count is not zero, 
> so I can rmmod it, So I think, for sbp2 that's safe, That's true on my
> laptop.

The module count does not cover all cases, especially the case which this
semaphore protects against.

-- 
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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