3.10-stable review patch. If anyone has any objections, please let me know.
------------------ From: Daniel Mack <[email protected]> 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 <[email protected]> Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/base/regmap/regmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -1717,7 +1717,7 @@ int regmap_async_complete(struct regmap int ret; /* Nothing to do with no async support */ - if (!map->bus->async_write) + if (!map->bus || !map->bus->async_write) return 0; trace_regmap_async_complete_start(map->dev); -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
