Commits
Russell King committed 4a043ac2ab3
drm/i2c: tda998x: avoid race in tda998x_encoder_mode_set() commit 6d30c0f728cac32ce8bf3d48ef6df485e0c641f1 upstream. 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>