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Bryan O'Donoghue 85d678c0be greybus: loopback: make loopback code thread safe 
Current code allows a sysfs callback and a kernel worker thread to write
all over and act upon data that could be in the process of being updated by
the other. This patch adds a reasonably coarse mutex to enscure sync
between the two.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
History 2015-07-28 14:50:02 -07:00
drivers/staging/greybus greybus: loopback: make loopback code thread safe 2015-07-28 14:50:02 -07:00