regmap: clean up debugfs if regmap_init fails

If debugfs isn't cleaned up, stale files will be left in the filesystem
which will cause an OOPS when accessed the first time, and hang the
accessing application when accessed again, presumably due to some lock
being left held.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 0bcda488f11cd45e6252e113ffd025b058309e99..2aa076e61367a8eff364ca7244dbfdd8dc0dc4fa 100644 (file)
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -368,7 +368,7 @@ struct regmap *regmap_init(struct device *dev,
 
        ret = regcache_init(map, config);
        if (ret < 0)
-               goto err_free_workbuf;
+               goto err_debugfs;
 
        /* Add a devres resource for dev_get_regmap() */
        m = devres_alloc(dev_get_regmap_release, sizeof(*m), GFP_KERNEL);
@@ -383,7 +383,8 @@ struct regmap *regmap_init(struct device *dev,
 
 err_cache:
        regcache_exit(map);
-err_free_workbuf:
+err_debugfs:
+       regmap_debugfs_exit(map);
        kfree(map->work_buf);
 err_map:
        kfree(map);