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| H A D | gpiolib-cdev.c | diff f30ef3e8376380c5be9de121517c713527cf0813 Tue Jul 07 23:15:53 CDT 2020 Kent Gibson <warthog618@gmail.com> gpiolib: cdev: fix minor race in GET_LINEINFO_WATCH
Merge separate usage of test_bit/set_bit into test_and_set_bit to remove
the possibility of a race between the test and set.
Similarly test_bit and clear_bit.
In the existing code it is possible for two threads to race past the
test_bit and then set or clear the watch bit, and neither return EBUSY.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
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