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| author | Guenter Roeck <linux@roeck-us.net> | 2014-03-20 08:12:28 -0700 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-03-20 15:58:25 +0000 |
| commit | 204747c970c0d568721c76ab8a57dde0e5dcf0d5 (patch) | |
| tree | 2235bb09163819c324a8bbb1473fcdd394c37779 /COPYING | |
| parent | 5a78401623740c892868d5929b33f5cda8fe819e (diff) | |
| download | blackbird-op-linux-204747c970c0d568721c76ab8a57dde0e5dcf0d5.tar.gz blackbird-op-linux-204747c970c0d568721c76ab8a57dde0e5dcf0d5.zip | |
mfd: kempld-core: Fix potential hang-up during boot
On PXT and COMe-cPC2 boards it is observed that the hardware
mutex is acquired but not being released during initialization.
This can result in a hang-up during boot if the driver is built
into the kernel.
Releasing the mutex twice if it was acquired fixes the problem.
Subsequent request/release cycles work as expected, so the fix is
only needed during initialization.
Cc: <stable@vger.kernel.org>
Reviewed-by: Michael Brunner <michael.brunner@kontron.com>
Tested-by: Michael Brunner <michael.brunner@kontron.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'COPYING')
0 files changed, 0 insertions, 0 deletions
