Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Fix the cmd cache keys for amp verbs
  ALSA: add missing definitions(letters) to HD-Audio.txt
  ALSA: hda - Add quirk mask for Fujitsu Amilo laptops with ALC883
  [ALSA] intel8x0: add one retry to the ac97_clock measurement routine
  [ALSA] intel8x0: fix wrong conditions in ac97_clock measure routine
  ALSA: hda - Avoid call of snd_jack_report at release
  ALSA: add private_data to struct snd_jack
  ALSA: snd-usb-caiaq: rename files to remove redundant information in file pathes
  ALSA: snd-usb-caiaq: clean up header includes
  ALSA: sound/pci: use memdup_user()
  ALSA: sound/usb: use memdup_user()
  ALSA: sound/isa: use memdup_user()
  ALSA: sound/core: use memdup_user()
  [ALSA] intel8x0: do not use zero value from PICB register
  [ALSA] intel8x0: an attempt to make ac97_clock measurement more reliable
  [ALSA] pcm-midlevel: Add more strict buffer position checks based on jiffies
  [ALSA] hda_intel: fix unexpected ring buffer positions
  ASoC: Disable S3C64xx support in Kconfig
  ASoC: magician: remove un-necessary #include of pxa-regs.h and hardware.h

Author: torvalds

Documentation/sound/alsa/HD-Audio.txt

@@ -169,15 +169,15 @@ PCI SSID look-up.
 What `model` option values are available depends on the codec chip.
 Check your codec chip from the codec proc file (see "Codec Proc-File"
 section below).  It will show the vendor/product name of your codec
-chip.  Then, see Documentation/sound/alsa/HD-Audio-Modelstxt file,
+chip.  Then, see Documentation/sound/alsa/HD-Audio-Models.txt file,
 the section of HD-audio driver.  You can find a list of codecs
 and `model` options belonging to each codec.  For example, for Realtek
 ALC262 codec chip, pass `model=ultra` for devices that are compatible
 with Samsung Q1 Ultra.
 
 Thus, the first thing you can do for any brand-new, unsupported and
 non-working HD-audio hardware is to check HD-audio codec and several
-different `model` option values.  If you have a luck, some of them
+different `model` option values.  If you have any luck, some of them
 might suit with your device well.
 
 Some codecs such as ALC880 have a special model option `model=test`.

include/sound/jack.h

@@ -50,6 +50,8 @@ struct snd_jack {
 	int type;
 	const char *id;
 	char name[100];
+	void *private_data;
+	void (*private_free)(struct snd_jack *);
 };
 
 #ifdef CONFIG_SND_JACK

include/sound/pcm.h

@@ -268,7 +268,8 @@ struct snd_pcm_runtime {
 	int overrange;
 	snd_pcm_uframes_t avail_max;
 	snd_pcm_uframes_t hw_ptr_base;	/* Position at buffer restart */
-	snd_pcm_uframes_t hw_ptr_interrupt; /* Position at interrupt time*/
+	snd_pcm_uframes_t hw_ptr_interrupt; /* Position at interrupt time */
+	unsigned long hw_ptr_jiffies;	/* Time when hw_ptr is updated */
 
 	/* -- HW params -- */
 	snd_pcm_access_t access;	/* access mode */

sound/core/control.c

@@ -723,14 +723,11 @@ static int snd_ctl_elem_read_user(struct snd_card *card,
 {
 	struct snd_ctl_elem_value *control;
 	int result;
-	
-	control = kmalloc(sizeof(*control), GFP_KERNEL);
-	if (control == NULL)
-		return -ENOMEM;	
-	if (copy_from_user(control, _control, sizeof(*control))) {
-		kfree(control);
-		return -EFAULT;
-	}
+
+	control = memdup_user(_control, sizeof(*control));
+	if (IS_ERR(control))
+		return PTR_ERR(control);
+
 	snd_power_lock(card);
 	result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
 	if (result >= 0)
@@ -784,13 +781,10 @@ static int snd_ctl_elem_write_user(struct snd_ctl_file *file,
 	struct snd_card *card;
 	int result;
 
-	control = kmalloc(sizeof(*control), GFP_KERNEL);
-	if (control == NULL)
-		return -ENOMEM;	
-	if (copy_from_user(control, _control, sizeof(*control))) {
-		kfree(control);
-		return -EFAULT;
-	}
+	control = memdup_user(_control, sizeof(*control));
+	if (IS_ERR(control))
+		return PTR_ERR(control);
+
 	card = file->card;
 	snd_power_lock(card);
 	result = snd_power_wait(card, SNDRV_CTL_POWER_D0);
@@ -916,13 +910,10 @@ static int snd_ctl_elem_user_tlv(struct snd_kcontrol *kcontrol,
 	if (op_flag > 0) {
 		if (size > 1024 * 128)	/* sane value */
 			return -EINVAL;
-		new_data = kmalloc(size, GFP_KERNEL);
-		if (new_data == NULL)
-			return -ENOMEM;
-		if (copy_from_user(new_data, tlv, size)) {
-			kfree(new_data);
-			return -EFAULT;
-		}
+
+		new_data = memdup_user(tlv, size);
+		if (IS_ERR(new_data))
+			return PTR_ERR(new_data);
 		change = ue->tlv_data_size != size;
 		if (!change)
 			change = memcmp(ue->tlv_data, new_data, size);

sound/core/jack.c

@@ -35,6 +35,9 @@ static int snd_jack_dev_free(struct snd_device *device)
 {
 	struct snd_jack *jack = device->device_data;
 
+	if (jack->private_free)
+		jack->private_free(jack);
+
 	/* If the input device is registered with the input subsystem
 	 * then we need to use a different deallocator. */
 	if (jack->registered)

sound/core/pcm_compat.c

@@ -232,14 +232,11 @@ static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream,
 	if (! (runtime = substream->runtime))
 		return -ENOTTY;
 
-	data = kmalloc(sizeof(*data), GFP_KERNEL);
-	if (data == NULL)
-		return -ENOMEM;
 	/* only fifo_size is different, so just copy all */
-	if (copy_from_user(data, data32, sizeof(*data32))) {
-		err = -EFAULT;
-		goto error;
-	}
+	data = memdup_user(data32, sizeof(*data32));
+	if (IS_ERR(data))
+		return PTR_ERR(data);
+
 	if (refine)
 		err = snd_pcm_hw_refine(substream, data);
 	else

sound/core/pcm_lib.c

@@ -209,9 +209,11 @@ static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	snd_pcm_uframes_t pos;
-	snd_pcm_uframes_t new_hw_ptr, hw_ptr_interrupt, hw_base;
-	snd_pcm_sframes_t delta;
+	snd_pcm_uframes_t old_hw_ptr, new_hw_ptr, hw_ptr_interrupt, hw_base;
+	snd_pcm_sframes_t hdelta, delta;
+	unsigned long jdelta;
 
+	old_hw_ptr = runtime->status->hw_ptr;
 	pos = snd_pcm_update_hw_ptr_pos(substream, runtime);
 	if (pos == SNDRV_PCM_POS_XRUN) {
 		xrun(substream);
@@ -247,7 +249,30 @@ static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
 			new_hw_ptr = hw_base + pos;
 		}
 	}
-	if (delta > runtime->period_size) {
+	hdelta = new_hw_ptr - old_hw_ptr;
+	jdelta = jiffies - runtime->hw_ptr_jiffies;
+	if (((hdelta * HZ) / runtime->rate) > jdelta + HZ/100) {
+		delta = jdelta /
+			(((runtime->period_size * HZ) / runtime->rate)
+								+ HZ/100);
+		hw_ptr_error(substream,
+			     "hw_ptr skipping! [Q] "
+			     "(pos=%ld, delta=%ld, period=%ld, "
+			     "jdelta=%lu/%lu/%lu)\n",
+			     (long)pos, (long)hdelta,
+			     (long)runtime->period_size, jdelta,
+			     ((hdelta * HZ) / runtime->rate), delta);
+		hw_ptr_interrupt = runtime->hw_ptr_interrupt +
+				   runtime->period_size * delta;
+		if (hw_ptr_interrupt >= runtime->boundary)
+			hw_ptr_interrupt -= runtime->boundary;
+		/* rebase to interrupt position */
+		hw_base = new_hw_ptr = hw_ptr_interrupt;
+		/* align hw_base to buffer_size */
+		hw_base -= hw_base % runtime->buffer_size;
+		delta = 0;
+	}
+	if (delta > runtime->period_size + runtime->period_size / 2) {
 		hw_ptr_error(substream,
 			     "Lost interrupts? "
 			     "(stream=%i, delta=%ld, intr_ptr=%ld)\n",
@@ -263,6 +288,7 @@ static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
 
 	runtime->hw_ptr_base = hw_base;
 	runtime->status->hw_ptr = new_hw_ptr;
+	runtime->hw_ptr_jiffies = jiffies;
 	runtime->hw_ptr_interrupt = hw_ptr_interrupt;
 
 	return snd_pcm_update_hw_ptr_post(substream, runtime);
@@ -275,6 +301,7 @@ int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
 	snd_pcm_uframes_t pos;
 	snd_pcm_uframes_t old_hw_ptr, new_hw_ptr, hw_base;
 	snd_pcm_sframes_t delta;
+	unsigned long jdelta;
 
 	old_hw_ptr = runtime->status->hw_ptr;
 	pos = snd_pcm_update_hw_ptr_pos(substream, runtime);
@@ -286,27 +313,29 @@ int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
 	new_hw_ptr = hw_base + pos;
 
 	delta = new_hw_ptr - old_hw_ptr;
+	jdelta = jiffies - runtime->hw_ptr_jiffies;
 	if (delta < 0) {
 		delta += runtime->buffer_size;
 		if (delta < 0) {
 			hw_ptr_error(substream, 
 				     "Unexpected hw_pointer value [2] "
-				     "(stream=%i, pos=%ld, old_ptr=%ld)\n",
+				     "(stream=%i, pos=%ld, old_ptr=%ld, jdelta=%li)\n",
 				     substream->stream, (long)pos,
-				     (long)old_hw_ptr);
+				     (long)old_hw_ptr, jdelta);
 			return 0;
 		}
 		hw_base += runtime->buffer_size;
 		if (hw_base >= runtime->boundary)
 			hw_base = 0;
 		new_hw_ptr = hw_base + pos;
 	}
-	if (delta > runtime->period_size && runtime->periods > 1) {
+	if (((delta * HZ) / runtime->rate) > jdelta + HZ/100) {
 		hw_ptr_error(substream,
 			     "hw_ptr skipping! "
-			     "(pos=%ld, delta=%ld, period=%ld)\n",
+			     "(pos=%ld, delta=%ld, period=%ld, jdelta=%lu/%lu)\n",
 			     (long)pos, (long)delta,
-			     (long)runtime->period_size);
+			     (long)runtime->period_size, jdelta,
+			     ((delta * HZ) / runtime->rate));
 		return 0;
 	}
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
@@ -315,6 +344,7 @@ int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
 
 	runtime->hw_ptr_base = hw_base;
 	runtime->status->hw_ptr = new_hw_ptr;
+	runtime->hw_ptr_jiffies = jiffies;
 
 	return snd_pcm_update_hw_ptr_post(substream, runtime);
 }
@@ -1441,6 +1471,7 @@ static int snd_pcm_lib_ioctl_reset(struct snd_pcm_substream *substream,
 		runtime->status->hw_ptr %= runtime->buffer_size;
 	else
 		runtime->status->hw_ptr = 0;
+	runtime->hw_ptr_jiffies = jiffies;
 	snd_pcm_stream_unlock_irqrestore(substream, flags);
 	return 0;
 }

sound/core/pcm_native.c

@@ -327,21 +327,16 @@ static int snd_pcm_hw_refine_user(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params;
 	int err;
 
-	params = kmalloc(sizeof(*params), GFP_KERNEL);
-	if (!params) {
-		err = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(params, _params, sizeof(*params))) {
-		err = -EFAULT;
-		goto out;
-	}
+	params = memdup_user(_params, sizeof(*params));
+	if (IS_ERR(params))
+		return PTR_ERR(params);
+
 	err = snd_pcm_hw_refine(substream, params);
 	if (copy_to_user(_params, params, sizeof(*params))) {
 		if (!err)
 			err = -EFAULT;
 	}
-out:
+
 	kfree(params);
 	return err;
 }
@@ -465,21 +460,16 @@ static int snd_pcm_hw_params_user(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params;
 	int err;
 
-	params = kmalloc(sizeof(*params), GFP_KERNEL);
-	if (!params) {
-		err = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(params, _params, sizeof(*params))) {
-		err = -EFAULT;
-		goto out;
-	}
+	params = memdup_user(_params, sizeof(*params));
+	if (IS_ERR(params))
+		return PTR_ERR(params);
+
 	err = snd_pcm_hw_params(substream, params);
 	if (copy_to_user(_params, params, sizeof(*params))) {
 		if (!err)
 			err = -EFAULT;
 	}
-out:
+
 	kfree(params);
 	return err;
 }
@@ -2593,13 +2583,11 @@ static int snd_pcm_playback_ioctl1(struct file *file,
 			return -EFAULT;
 		if (copy_from_user(&xfern, _xfern, sizeof(xfern)))
 			return -EFAULT;
-		bufs = kmalloc(sizeof(void *) * runtime->channels, GFP_KERNEL);
-		if (bufs == NULL)
-			return -ENOMEM;
-		if (copy_from_user(bufs, xfern.bufs, sizeof(void *) * runtime->channels)) {
-			kfree(bufs);
-			return -EFAULT;
-		}
+
+		bufs = memdup_user(xfern.bufs,
+				   sizeof(void *) * runtime->channels);
+		if (IS_ERR(bufs))
+			return PTR_ERR(bufs);
 		result = snd_pcm_lib_writev(substream, bufs, xfern.frames);
 		kfree(bufs);
 		__put_user(result, &_xfern->result);
@@ -2675,13 +2663,11 @@ static int snd_pcm_capture_ioctl1(struct file *file,
 			return -EFAULT;
 		if (copy_from_user(&xfern, _xfern, sizeof(xfern)))
 			return -EFAULT;
-		bufs = kmalloc(sizeof(void *) * runtime->channels, GFP_KERNEL);
-		if (bufs == NULL)
-			return -ENOMEM;
-		if (copy_from_user(bufs, xfern.bufs, sizeof(void *) * runtime->channels)) {
-			kfree(bufs);
-			return -EFAULT;
-		}
+
+		bufs = memdup_user(xfern.bufs,
+				   sizeof(void *) * runtime->channels);
+		if (IS_ERR(bufs))
+			return PTR_ERR(bufs);
 		result = snd_pcm_lib_readv(substream, bufs, xfern.frames);
 		kfree(bufs);
 		__put_user(result, &_xfern->result);
@@ -3312,18 +3298,12 @@ static int snd_pcm_hw_refine_old_user(struct snd_pcm_substream *substream,
 	int err;
 
 	params = kmalloc(sizeof(*params), GFP_KERNEL);
-	if (!params) {
-		err = -ENOMEM;
-		goto out;
-	}
-	oparams = kmalloc(sizeof(*oparams), GFP_KERNEL);
-	if (!oparams) {
-		err = -ENOMEM;
-		goto out;
-	}
+	if (!params)
+		return -ENOMEM;
 
-	if (copy_from_user(oparams, _oparams, sizeof(*oparams))) {
-		err = -EFAULT;
+	oparams = memdup_user(_oparams, sizeof(*oparams));
+	if (IS_ERR(oparams)) {
+		err = PTR_ERR(oparams);
 		goto out;
 	}
 	snd_pcm_hw_convert_from_old_params(params, oparams);
@@ -3333,9 +3313,10 @@ static int snd_pcm_hw_refine_old_user(struct snd_pcm_substream *substream,
 		if (!err)
 			err = -EFAULT;
 	}
+
+	kfree(oparams);
 out:
 	kfree(params);
-	kfree(oparams);
 	return err;
 }
 
@@ -3347,17 +3328,12 @@ static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
 	int err;
 
 	params = kmalloc(sizeof(*params), GFP_KERNEL);
-	if (!params) {
-		err = -ENOMEM;
-		goto out;
-	}
-	oparams = kmalloc(sizeof(*oparams), GFP_KERNEL);
-	if (!oparams) {
-		err = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(oparams, _oparams, sizeof(*oparams))) {
-		err = -EFAULT;
+	if (!params)
+		return -ENOMEM;
+
+	oparams = memdup_user(_oparams, sizeof(*oparams));
+	if (IS_ERR(oparams)) {
+		err = PTR_ERR(oparams);
 		goto out;
 	}
 	snd_pcm_hw_convert_from_old_params(params, oparams);
@@ -3367,9 +3343,10 @@ static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
 		if (!err)
 			err = -EFAULT;
 	}
+
+	kfree(oparams);
 out:
 	kfree(params);
-	kfree(oparams);
 	return err;
 }
 #endif /* CONFIG_SND_SUPPORT_OLD_API */