Commits
Daniel Mack committed 8acd5b1eaaf
regmap: cache: bail in regmap_async_complete() for bus-less maps
commit f2e055e7c9c6084bfbaa68701e52562acf96419e upstream.
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>
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>