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Commit af8500bb authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: ctxfi - Fix possible buffer pointer overrun 



Fix possible buffer pointer overruns.  Back to zero when it's equal
or over the buffer size.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 514eef9c

sound/pci/ctxfi/ctpcm.c

+4 −0
Original line number Diff line number Diff line
@@ -243,6 +243,8 @@ ct_pcm_playback_pointer(struct snd_pcm_substream *substream) 
	/* Read out playback position */

	position = atc->pcm_playback_position(atc, apcm);

	position = bytes_to_frames(runtime, position);

	if (position >= runtime->buffer_size)

		position = 0;

	return position;

}
@@ -343,6 +345,8 @@ ct_pcm_capture_pointer(struct snd_pcm_substream *substream) 
	/* Read out playback position */

	position = atc->pcm_capture_position(atc, apcm);

	position = bytes_to_frames(runtime, position);

	if (position >= runtime->buffer_size)

		position = 0;

	return position;

}