From: Ben Hutchings <bhutchings@solarflare.com>
Date: Wed, 13 Jan 2010 04:34:25 +0000 (+0000)
Subject: sfc: Fix polling for slow MCDI operations
X-Git-Tag: v2.6.33-rc5~71^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=55029c1d65158aea9672c5dfadb43a57f23e3100;p=pandora-kernel.git

sfc: Fix polling for slow MCDI operations

When the interface is down and we are using polled mode for MCDI
operations, we busy-wait for completion for approximately 1 jiffy
using udelay() and then back off to schedule().  But the completion
will not wake the task, since we are using polled mode!  We must use
schedule_timeout_uninterruptible() instead.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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