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| author | Kent Gibson <warthog618@gmail.com> | 2020-07-08 12:15:53 +0800 |
|---|---|---|
| committer | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2020-07-12 10:22:01 +0200 |
| commit | f30ef3e8376380c5be9de121517c713527cf0813 (patch) | |
| tree | aa8a58adb18e33acaab8db518e5fb4ec6030e448 /net/lapb/lapb_subr.c | |
| parent | e2b781c5f0dd45f632b3e15bbca702d1d140fce7 (diff) | |
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>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions