From: Daniel Mack <zonque@gmail.com>
Date: Thu, 4 Jul 2013 11:11:03 +0000 (+0200)
Subject: regmap: cache: bail in regmap_async_complete() for bus-less maps
X-Git-Tag: v3.11-rc2~25^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f2e055e7c9c6084bfbaa68701e52562acf96419e;p=pandora-kernel.git

regmap: cache: bail in regmap_async_complete() for bus-less maps

Commit f8bd822cb ("regmap: cache: Factor out block sync") made
regcache_rbtree_sync() call regmap_async_complete(), which in turn does
not check for map->bus before dereferencing it.

This causes a NULL pointer dereference on bus-less maps.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: stable@vger.kernel.org [v3.10 only]
Signed-off-by: Mark Brown <broonie@linaro.org>
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