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regmap: Fix crash for async operation on busless maps 

This fixes a crash if something tries to do an asynchronous operation on
 busless maps which was introduced during the merge window.
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Merge tag 'regmap-v3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fix from Mark Brown:
 "Fix regmap crash for async operation on busless maps

  This fixes a crash if something tries to do an asynchronous operation
  on busless maps which was introduced during the merge window"

* tag 'regmap-v3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: cache: bail in regmap_async_complete() for bus-less maps
This commit is contained in:
Linus Torvalds 2013-07-15 15:44:58 -07:00
parent f5f28b894b f2e055e7c9
commit f2ec26a3d4
1 changed files with 1 additions and 1 deletions
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2
drivers/base/regmap/regmap.c
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@ -1853,7 +1853,7 @@ int regmap_async_complete(struct regmap *map)
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);