https://github.com/torvalds/linux
Revision 28ee086d5b36aab2931f6740e409bb0fb6c65e5f authored by Richard Purdie on 08 February 2007, 22:25:09 UTC, committed by Richard Purdie on 20 February 2007, 08:38:45 UTC
backlight_device->sem has a very specific use as documented in the header file. The external users of this are using it for a different reason, to serialise access to the update_status() method. backlight users were supposed to implement their own internal serialisation of update_status() if needed but everyone is doing things differently and incorrectly. Therefore add a global mutex to take care of serialisation for everyone, once and for all. Locking for get_brightness remains optional since most users don't need it. Also update the lcd class in a similar way. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
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Tip revision: 28ee086d5b36aab2931f6740e409bb0fb6c65e5f authored by Richard Purdie on 08 February 2007, 22:25:09 UTC
backlight: Fix external uses of backlight internal semaphore
backlight: Fix external uses of backlight internal semaphore
Tip revision: 28ee086
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| scripts | ||
| security | ||
| sound | ||
| usr | ||
| .gitignore | -rw-r--r-- | 572 bytes |
| .mailmap | -rw-r--r-- | 3.5 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 88.9 KB |
| Kbuild | -rw-r--r-- | 1.2 KB |
| MAINTAINERS | -rw-r--r-- | 81.8 KB |
| Makefile | -rw-r--r-- | 49.1 KB |
| README | -rw-r--r-- | 16.5 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.0 KB |
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