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| author |   John Hsu <KCHSU0@nuvoton.com> | 2017-12-01 10:01:50 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2017-12-04 18:14:42 +0000 |
| commit | 70424d8e6e15abd32e189130be220d0063e082bc (patch) | |
| tree | aa415170b6f98fa07cac4810810c168600d27ca5 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ASoC: nau8825: set clear_irq when imm IRQ happened (diff) | |
| download | linux-dev-70424d8e6e15abd32e189130be220d0063e082bc.tar.xz linux-dev-70424d8e6e15abd32e189130be220d0063e082bc.zip | |
ASoC: nau8825: improve semaphore control
After reviewing the crosstalk protection, there are two flaws at
semaphore control. The first one is that the semaphore releases are
not enough; and the other is that down_interruptible has an risk to
make the ISR sleep.
Therefore, the driver add more releases before the funcitons return.
Take down_trylock to replace down_interruptible. The ISR can control
the protection as well and never sleep by semaphore.
Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions