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audio/oss: fix buffer pos calculation

Fixes: 3ba4066d08 ("ossaudio: port to the new audio backend api")
Reported-by: ziming zhang <ezrakiez@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20200120101804.29578-1-kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
(cherry picked from commit 7a4ede0047)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
stable-4.2
Gerd Hoffmann 1 year ago
committed by Michael Roth
parent
commit
4b34c6d724
  1. 2
      audio/ossaudio.c

2
audio/ossaudio.c

@ -420,7 +420,7 @@ static size_t oss_write(HWVoiceOut *hw, void *buf, size_t len)
size_t to_copy = MIN(len, hw->size_emul - hw->pos_emul);
memcpy(hw->buf_emul + hw->pos_emul, buf, to_copy);
hw->pos_emul = (hw->pos_emul + to_copy) % hw->pos_emul;
hw->pos_emul = (hw->pos_emul + to_copy) % hw->size_emul;
buf += to_copy;
len -= to_copy;
}

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