From: Dmitry Shmidt <dimitrysh@google.com>
Date: Thu, 3 Mar 2011 22:40:10 +0000 (-0500)
Subject: mmc: sdio: Allow sdio operations in other threads during sdio_add_func()
X-Git-Tag: v2.6.38-rc8~3^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=34497913f2936fd43c86b007da7224bb8e77fd15;p=pandora-kernel.git

mmc: sdio: Allow sdio operations in other threads during sdio_add_func()

This fixes a bug introduced by 807e8e40673d ("mmc: Fix sd/sdio/mmc
initialization frequency retries") that prevented SDIO drivers from
performing SDIO commands in their probe routines -- the above patch
called mmc_claim_host() before sdio_add_func(), which causes a deadlock
if an external SDIO driver calls sdio_claim_host().

Fix tested on an OLPC XO-1.75 with libertas on SDIO.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Reviewed-and-Tested-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
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