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09318c47b6
ak4535_remove() from sound/soc/codecs/ak4535.c calls i2c_unregister_device() with a possibly null pointer. This bug was found by smatch (http://repo.or.cz/w/smatch.git/). Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>