提交 ae6a5d37 编写于 作者: R Russell King 提交者: Mark Brown

ASoC: kirkwood-dma: fix use of virt_to_phys()

This is part of a patch found in Rabeeh Khoury's git tree for the
cubox.

You can not use virt_to_phys() on the address returned from
dma_alloc_coherent(); it may not be part of the kernel direct-mapped
memory.  Fix this to use the DMA address instead.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
上级 f4a75d2e
......@@ -178,7 +178,7 @@ static int kirkwood_dma_open(struct snd_pcm_substream *substream)
}
dram = mv_mbus_dram_info();
addr = virt_to_phys(substream->dma_buffer.area);
addr = substream->dma_buffer.addr;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
prdata->play_stream = substream;
kirkwood_dma_conf_mbus_windows(priv->io,
......
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