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| author | Takashi Iwai <tiwai@suse.de> | 2009-09-10 15:32:58 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-09-10 15:32:58 +0200 |
| commit | fa285190025d0b9a35ed0f6233bfaa721281e0f4 (patch) | |
| tree | b82ba1f315aa10440af14c4adc64a24aa0e18325 /sound | |
| parent | 9cd9f4276766e15be40d09f77e28656797a1b06f (diff) | |
| parent | cbbb05703da4b205bb17fde555d3b2926d8b3194 (diff) | |
| download | lwn-fa285190025d0b9a35ed0f6233bfaa721281e0f4.tar.gz lwn-fa285190025d0b9a35ed0f6233bfaa721281e0f4.zip | |
Merge branch 'topic/oss' into for-linus
* topic/oss:
ALSA: allocation may fail in snd_pcm_oss_change_params()
sound: vwsnd: Fix setting of cfgval and ctlval in li_setup_dma()
sound: fix OSS MIDI output data loss
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/oss/pcm_oss.c | 9 | ||||
| -rw-r--r-- | sound/oss/midibuf.c | 7 | ||||
| -rw-r--r-- | sound/oss/vwsnd.c | 6 |
3 files changed, 14 insertions, 8 deletions
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index d8b2d76125b4..d9c96353121a 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -1043,10 +1043,15 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) runtime->oss.channels = params_channels(params); runtime->oss.rate = params_rate(params); - runtime->oss.params = 0; - runtime->oss.prepare = 1; vfree(runtime->oss.buffer); runtime->oss.buffer = vmalloc(runtime->oss.period_bytes); + if (!runtime->oss.buffer) { + err = -ENOMEM; + goto failure; + } + + runtime->oss.params = 0; + runtime->oss.prepare = 1; runtime->oss.buffer_used = 0; if (runtime->dma_area) snd_pcm_format_set_silence(runtime->format, runtime->dma_area, bytes_to_samples(runtime, runtime->dma_bytes)); diff --git a/sound/oss/midibuf.c b/sound/oss/midibuf.c index a40be0cf1d97..782b3b84dac6 100644 --- a/sound/oss/midibuf.c +++ b/sound/oss/midibuf.c @@ -127,15 +127,16 @@ static void midi_poll(unsigned long dummy) for (dev = 0; dev < num_midis; dev++) if (midi_devs[dev] != NULL && midi_out_buf[dev] != NULL) { - int ok = 1; - - while (DATA_AVAIL(midi_out_buf[dev]) && ok) + while (DATA_AVAIL(midi_out_buf[dev])) { + int ok; int c = midi_out_buf[dev]->queue[midi_out_buf[dev]->head]; spin_unlock_irqrestore(&lock,flags);/* Give some time to others */ ok = midi_devs[dev]->outputc(dev, c); spin_lock_irqsave(&lock, flags); + if (!ok) + break; midi_out_buf[dev]->head = (midi_out_buf[dev]->head + 1) % MAX_QUEUE_SIZE; midi_out_buf[dev]->len--; } diff --git a/sound/oss/vwsnd.c b/sound/oss/vwsnd.c index 187f72750e8f..6713110bdc75 100644 --- a/sound/oss/vwsnd.c +++ b/sound/oss/vwsnd.c @@ -628,7 +628,7 @@ static void li_setup_dma(dma_chan_t *chan, ASSERT(!(buffer_paddr & 0xFF)); chan->baseval = (buffer_paddr >> 8) | 1 << (37 - 8); - chan->cfgval = (!LI_CCFG_LOCK | + chan->cfgval = ((chan->cfgval & ~LI_CCFG_LOCK) | SHIFT_FIELD(desc->ad1843_slot, LI_CCFG_SLOT) | desc->direction | mode | @@ -638,9 +638,9 @@ static void li_setup_dma(dma_chan_t *chan, tmask = 13 - fragshift; /* See Lithium DMA Notes above. */ ASSERT(size >= 2 && size <= 7); ASSERT(tmask >= 1 && tmask <= 7); - chan->ctlval = (!LI_CCTL_RESET | + chan->ctlval = ((chan->ctlval & ~LI_CCTL_RESET) | SHIFT_FIELD(size, LI_CCTL_SIZE) | - !LI_CCTL_DMA_ENABLE | + (chan->ctlval & ~LI_CCTL_DMA_ENABLE) | SHIFT_FIELD(tmask, LI_CCTL_TMASK) | SHIFT_FIELD(0, LI_CCTL_TPTR)); |