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| author | Richard Fitzgerald | 2018-11-12 14:36:38 +0100 |
|---|---|---|
| committer | Mark Brown | 2018-11-13 19:08:47 +0100 |
| commit | 20e00db2f59bdddf8a8e241473ef8be94631d3ae (patch) | |
| tree | fc6ca8888b69b27a87f5fffb3b5d6f16857714c3 /sound/soc/codecs/hdac_hdmi.c | |
| parent | ASoC: rockchip: add missing slave_config setting for I2S (diff) | |
| download | kernel-qcow2-linux-20e00db2f59bdddf8a8e241473ef8be94631d3ae.tar.gz kernel-qcow2-linux-20e00db2f59bdddf8a8e241473ef8be94631d3ae.tar.xz kernel-qcow2-linux-20e00db2f59bdddf8a8e241473ef8be94631d3ae.zip | |
ASoC: wm_adsp: Fix dma-unsafe read of scratch registers
Stack memory isn't DMA-safe so it isn't safe to use either
regmap_raw_read or regmap_bulk_read to read into stack memory.
The two functions to read the scratch registers were using
stack memory and regmap_raw_read. It's not worth allocating
memory just for this trivial read, and it isn't time-critical.
A simple regmap_read for each register is sufficient.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/hdac_hdmi.c')
0 files changed, 0 insertions, 0 deletions