From: Sergey SENOZHATSKY <sergey.senozhatsky.work@gmail.com>
Date: Mon, 31 Aug 2015 09:54:58 +0000 (+0900)
Subject: regmap: fix a NULL pointer dereference in __regmap_init
X-Git-Tag: omap-for-v4.3/fixes-rc1~58^2~2^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=17649c90ff4c5246bb4babf6260029968a6d119d;p=pandora-kernel.git

regmap: fix a NULL pointer dereference in __regmap_init

__regmap_init() may receive a NULL `struct regmap_bus *bus' pointer,
for example, from snd_hdac_regmap_init(), and it make sure that it
does not NULL deference `bus`, except around ->max_raw_read and
->max_raw_write initialisation. Add missing check.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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