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regmap: clean up debugfs if regmap_init fails

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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 <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
This commit is contained in:
Stephen Warren 2012-05-23 16:30:53 -06:00 • committed by Mark Brown
commit bfaa25f334
1 changed files with 3 additions and 2 deletions
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5
drivers/base/regmap/regmap.c
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@ -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);