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| author |   Russell King <rmk+kernel@armlinux.org.uk> | 2016-10-23 11:31:44 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2016-11-18 00:00:40 +0000 |
| commit | 6d30c0f728cac32ce8bf3d48ef6df485e0c641f1 (patch) | |
| tree | e3bace2927221f4e4998f88eb70c7eaf682bacf3 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | drm/i2c: tda998x: move audio mutex initialisation (diff) | |
| download | linux-dev-6d30c0f728cac32ce8bf3d48ef6df485e0c641f1.tar.xz linux-dev-6d30c0f728cac32ce8bf3d48ef6df485e0c641f1.zip | |
drm/i2c: tda998x: avoid race in tda998x_encoder_mode_set()
As priv->audio_params can now be changed at run time, we need to be more
careful about how we deal with a mode set. We must take the audio lock
while checking if there's a valid audio configuration.
However, it's slightly worse than that - during mode set, we mute the
audio, and it must not be unmuted until we have finished the mode set.
It is possible that the audio side may start while a mode set is in
progress, so take the audio_mutex lock around the whole mode setting
procedure.
Tested-by: Jon Medhurst <tixy@linaro.org>
Acked-by: Jon Medhurst <tixy@linaro.org>
Tested-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions