netdev - Re: [PATCH 2/3] b43: Fix oops if firmware is not available

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Date:	Sun, 12 Jan 2014 09:40:39 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	Larry Finger <Larry.Finger@...inger.net>, linville@...driver.com,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	Stable <stable@...r.kernel.org>
Subject: Re: [PATCH 2/3] b43: Fix oops if firmware is not available

On Sun, 2014-01-12 at 04:24 +0000, Ben Hutchings wrote:

> You could switch back to synchronous firmware loading soon, as it's not
> going to support a usermode helper any more.
> 
> But until then, the proper fix for this is going to be to cancel the
> waiter earlier in teardown.

I don't think we found a way when we looked at this, and instead made
the module unload wait for the request_firmware callback to come back
(see all users of the request_firmware_complete struct member in
iwlwifi/iwl-drv.c)

johannes

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