[ALSA] dbri sparc: fixes TS leak
This patch fixes time slot leak in the dbri driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
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@ -1044,7 +1044,7 @@ static int setup_descs(struct snd_dbri * dbri, int streamno, unsigned int period
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{
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struct dbri_streaminfo *info = &dbri->stream_info[streamno];
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__u32 dvma_buffer;
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int desc = 0;
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int desc;
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int len;
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int first_desc = -1;
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int last_desc = -1;
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@ -1087,6 +1087,18 @@ static int setup_descs(struct snd_dbri * dbri, int streamno, unsigned int period
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len &= ~3;
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}
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/* Free descriptors if pipe has any */
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desc = dbri->pipes[info->pipe].first_desc;
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if ( desc >= 0)
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do {
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dbri->dma->desc[desc].nda = dbri->dma->desc[desc].ba = 0;
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desc = dbri->next_desc[desc];
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} while (desc != -1 && desc != dbri->pipes[info->pipe].first_desc);
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dbri->pipes[info->pipe].desc = -1;
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dbri->pipes[info->pipe].first_desc = -1;
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desc = 0;
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while (len > 0) {
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int mylen;
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@ -2054,6 +2066,7 @@ static int snd_dbri_hw_free(struct snd_pcm_substream *substream)
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struct snd_dbri *dbri = snd_pcm_substream_chip(substream);
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struct dbri_streaminfo *info = DBRI_STREAM(dbri, substream);
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int direction;
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dprintk(D_USR, "hw_free.\n");
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/* hw_free can get called multiple times. Only unmap the DMA once.
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@ -2068,7 +2081,10 @@ static int snd_dbri_hw_free(struct snd_pcm_substream *substream)
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substream->runtime->buffer_size, direction);
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info->dvma_buffer = 0;
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}
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info->pipe = -1;
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if (info->pipe != -1) {
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reset_pipe(dbri, info->pipe);
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info->pipe = -1;
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}
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return snd_pcm_lib_free_pages(substream);
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}
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