Commit e6110114 authored by Kai Vehmanen's avatar Kai Vehmanen Committed by Mark Brown

ASoC: SOF: trace: fix unconditional free in trace release

Check if DMA pages were successfully allocated in initialization
before calling free. For many types of memory (like sgbufs)
the extra free is harmless, but not all backends track allocation
state, so add an explicit check.
Signed-off-by: default avatarKai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200124213625.30186-5-pierre-louis.bossart@linux.intel.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
parent 410e5e55
......@@ -343,7 +343,10 @@ void snd_sof_free_trace(struct snd_sof_dev *sdev)
snd_sof_release_trace(sdev);
if (sdev->dma_trace_pages) {
snd_dma_free_pages(&sdev->dmatb);
snd_dma_free_pages(&sdev->dmatp);
sdev->dma_trace_pages = 0;
}
}
EXPORT_SYMBOL(snd_sof_free_trace);
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