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由 Clemens Ladisch 提交于
Check that the interrupt raised for a stream is actually a buffer completion interrupt before handling it as one. Otherwise, memory errors or FIFO xruns would be interpreted as a pointer update and could break the stream timing. Signed-off-by: NClemens Ladisch <clemens@ladisch.de> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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