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authorMika Kuoppala <mika.kuoppala@nokia.com>2009-12-06 17:06:22 +0100
committerJean Delvare <khali@linux-fr.org>2009-12-06 17:06:22 +0100
commit194684e596af4bdaebb424166d94a8aa528edfda (patch)
tree1a6b0ede432e8c9fb4f7a1652deb71044ff9aa50 /lib/bug.c
parenta0c11cdd6a1975fd8d6d186f2e2865a82f3e9bbf (diff)
i2c: Prevent priority inversion on top of bus lock
Low priority thread holding the i2c bus mutex could block higher priority threads to access the bus resulting in unacceptable latencies. Change the mutex type to rt_mutex preventing priority inversion. Tested-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Mika Kuoppala <mika.kuoppala@nokia.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
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