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Commit 40f74202 authored by qctecmdr Service's avatar qctecmdr Service Committed by Gerrit - the friendly Code Review server
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Merge "ALSA: pcm: fix blocking while loop in snd_pcm_update_hw_ptr0()"

parents e8da0f32 e6450e31

sound/core/pcm_lib.c

+2 −1
Original line number Diff line number Diff line
@@ -359,7 +359,8 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream, 
		 * the elapsed time to detect xruns.

		 */

		jdelta = curr_jiffies - runtime->hw_ptr_jiffies;

		if (jdelta < runtime->hw_ptr_buffer_jiffies / 2)

		if ((jdelta < runtime->hw_ptr_buffer_jiffies / 2) ||

		    (runtime->hw_ptr_buffer_jiffies <= 0))

			goto no_delta_check;

		hdelta = jdelta - delta * HZ / runtime->rate;

		xrun_threshold = runtime->hw_ptr_buffer_jiffies / 2 + 1;