Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	sound/core/memalloc.c

45 files changed, 890 insertions, 442 deletions

diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index 335d45ecde6..66348c92f88 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -12,6 +12,12 @@ config SND_HWDEP
 config SND_RAWMIDI
 	tristate
 
+# To be effective this also requires INPUT - users should say:
+#    select SND_JACK if INPUT=y || INPUT=SND
+# to avoid having to force INPUT on.
+config SND_JACK
+	bool
+
 config SND_SEQUENCER
 	tristate "Sequencer support"
 	select SND_TIMER
@@ -38,6 +44,7 @@ config SND_SEQ_DUMMY
 	  will be called snd-seq-dummy.
 
 config SND_OSSEMUL
+	select SOUND_OSS_CORE
 	bool
 
 config SND_MIXER_OSS
@@ -101,6 +108,9 @@ config SND_RTCTIMER
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-rtctimer.
 
+	  Note that this option is exclusive with the new RTC drivers
+	  (CONFIG_RTC_CLASS) since this requires the old API.
+
 config SND_SEQ_RTCTIMER_DEFAULT
 	bool "Use RTC as default sequencer timer"
 	depends on SND_RTCTIMER && SND_SEQUENCER
diff --git a/sound/core/Makefile b/sound/core/Makefile
index da8e685eef9..d57125a5687 100644
--- a/sound/core/Makefile
+++ b/sound/core/Makefile
@@ -7,6 +7,7 @@ snd-y     := sound.o init.o memory.o info.o control.o misc.o device.o
 snd-$(CONFIG_ISA_DMA_API) += isadma.o
 snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o info_oss.o
 snd-$(CONFIG_SND_VMASTER) += vmaster.o
+snd-$(CONFIG_SND_JACK)	  += jack.o
 
 snd-pcm-objs := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \
 		pcm_memory.o
diff --git a/sound/core/control.c b/sound/core/control.c
index 281b2e2ef0e..6d71f9a7ccb 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -139,7 +139,8 @@ void snd_ctl_notify(struct snd_card *card, unsigned int mask,
 	struct snd_ctl_file *ctl;
 	struct snd_kctl_event *ev;
 	
-	snd_assert(card != NULL && id != NULL, return);
+	if (snd_BUG_ON(!card || !id))
+		return;
 	read_lock(&card->ctl_files_rwlock);
 #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
 	card->mixer_oss_change_count++;
@@ -188,8 +189,8 @@ static struct snd_kcontrol *snd_ctl_new(struct snd_kcontrol *control,
 	struct snd_kcontrol *kctl;
 	unsigned int idx;
 	
-	snd_assert(control != NULL, return NULL);
-	snd_assert(control->count > 0, return NULL);
+	if (snd_BUG_ON(!control || !control->count))
+		return NULL;
 	kctl = kzalloc(sizeof(*kctl) + sizeof(struct snd_kcontrol_volatile) * control->count, GFP_KERNEL);
 	if (kctl == NULL) {
 		snd_printk(KERN_ERR "Cannot allocate control instance\n");
@@ -218,8 +219,8 @@ struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new *ncontrol,
 	struct snd_kcontrol kctl;
 	unsigned int access;
 	
-	snd_assert(ncontrol != NULL, return NULL);
-	snd_assert(ncontrol->info != NULL, return NULL);
+	if (snd_BUG_ON(!ncontrol || !ncontrol->info))
+		return NULL;
 	memset(&kctl, 0, sizeof(kctl));
 	kctl.id.iface = ncontrol->iface;
 	kctl.id.device = ncontrol->device;
@@ -315,8 +316,8 @@ int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
 
 	if (! kcontrol)
 		return err;
-	snd_assert(card != NULL, goto error);
-	snd_assert(kcontrol->info != NULL, goto error);
+	if (snd_BUG_ON(!card || !kcontrol->info))
+		goto error;
 	id = kcontrol->id;
 	down_write(&card->controls_rwsem);
 	if (snd_ctl_find_id(card, &id)) {
@@ -367,7 +368,8 @@ int snd_ctl_remove(struct snd_card *card, struct snd_kcontrol *kcontrol)
 	struct snd_ctl_elem_id id;
 	unsigned int idx;
 
-	snd_assert(card != NULL && kcontrol != NULL, return -EINVAL);
+	if (snd_BUG_ON(!card || !kcontrol))
+		return -EINVAL;
 	list_del(&kcontrol->list);
 	card->controls_count -= kcontrol->count;
 	id = kcontrol->id;
@@ -487,7 +489,8 @@ struct snd_kcontrol *snd_ctl_find_numid(struct snd_card *card, unsigned int numi
 {
 	struct snd_kcontrol *kctl;
 
-	snd_assert(card != NULL && numid != 0, return NULL);
+	if (snd_BUG_ON(!card || !numid))
+		return NULL;
 	list_for_each_entry(kctl, &card->controls, list) {
 		if (kctl->id.numid <= numid && kctl->id.numid + kctl->count > numid)
 			return kctl;
@@ -514,7 +517,8 @@ struct snd_kcontrol *snd_ctl_find_id(struct snd_card *card,
 {
 	struct snd_kcontrol *kctl;
 
-	snd_assert(card != NULL && id != NULL, return NULL);
+	if (snd_BUG_ON(!card || !id))
+		return NULL;
 	if (id->numid != 0)
 		return snd_ctl_find_numid(card, id->numid);
 	list_for_each_entry(kctl, &card->controls, list) {
@@ -647,7 +651,7 @@ static int snd_ctl_elem_info(struct snd_ctl_file *ctl,
 #endif
 	result = kctl->info(kctl, info);
 	if (result >= 0) {
-		snd_assert(info->access == 0, );
+		snd_BUG_ON(info->access);
 		index_offset = snd_ctl_get_ioff(kctl, &info->id);
 		vd = &kctl->vd[index_offset];
 		snd_ctl_build_ioff(&info->id, kctl, index_offset);
@@ -1160,7 +1164,8 @@ static long snd_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg
 
 	ctl = file->private_data;
 	card = ctl->card;
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 	switch (cmd) {
 	case SNDRV_CTL_IOCTL_PVERSION:
 		return put_user(SNDRV_CTL_VERSION, ip) ? -EFAULT : 0;
@@ -1222,7 +1227,8 @@ static ssize_t snd_ctl_read(struct file *file, char __user *buffer,
 	ssize_t result = 0;
 
 	ctl = file->private_data;
-	snd_assert(ctl != NULL && ctl->card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!ctl || !ctl->card))
+		return -ENXIO;
 	if (!ctl->subscribed)
 		return -EBADFD;
 	if (count < sizeof(struct snd_ctl_event))
@@ -1328,7 +1334,8 @@ static int _snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn,
 {
 	struct snd_kctl_ioctl *p;
 
-	snd_assert(fcn != NULL, return -EINVAL);
+	if (snd_BUG_ON(!fcn))
+		return -EINVAL;
 	down_write(&snd_ioctl_rwsem);
 	list_for_each_entry(p, lists, list) {
 		if (p->fioctl == fcn) {
@@ -1404,9 +1411,11 @@ static int snd_ctl_dev_register(struct snd_device *device)
 	int err, cardnum;
 	char name[16];
 
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 	cardnum = card->number;
-	snd_assert(cardnum >= 0 && cardnum < SNDRV_CARDS, return -ENXIO);
+	if (snd_BUG_ON(cardnum < 0 || cardnum >= SNDRV_CARDS))
+		return -ENXIO;
 	sprintf(name, "controlC%i", cardnum);
 	if ((err = snd_register_device(SNDRV_DEVICE_TYPE_CONTROL, card, -1,
 				       &snd_ctl_f_ops, card, name)) < 0)
@@ -1423,16 +1432,18 @@ static int snd_ctl_dev_disconnect(struct snd_device *device)
 	struct snd_ctl_file *ctl;
 	int err, cardnum;
 
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 	cardnum = card->number;
-	snd_assert(cardnum >= 0 && cardnum < SNDRV_CARDS, return -ENXIO);
+	if (snd_BUG_ON(cardnum < 0 || cardnum >= SNDRV_CARDS))
+		return -ENXIO;
 
-	down_read(&card->controls_rwsem);
+	read_lock(&card->ctl_files_rwlock);
 	list_for_each_entry(ctl, &card->ctl_files, list) {
 		wake_up(&ctl->change_sleep);
 		kill_fasync(&ctl->fasync, SIGIO, POLL_ERR);
 	}
-	up_read(&card->controls_rwsem);
+	read_unlock(&card->ctl_files_rwlock);
 
 	if ((err = snd_unregister_device(SNDRV_DEVICE_TYPE_CONTROL,
 					 card, -1)) < 0)
@@ -1469,7 +1480,8 @@ int snd_ctl_create(struct snd_card *card)
 		.dev_disconnect = snd_ctl_dev_disconnect,
 	};
 
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 	return snd_device_new(card, SNDRV_DEV_CONTROL, card, &ops);
 }
 
diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c
index 6101259ad86..368dc9c4aef 100644
--- a/sound/core/control_compat.c
+++ b/sound/core/control_compat.c
@@ -398,7 +398,8 @@ static inline long snd_ctl_ioctl_compat(struct file *file, unsigned int cmd, uns
 	int err;
 
 	ctl = file->private_data;
-	snd_assert(ctl && ctl->card, return -ENXIO);
+	if (snd_BUG_ON(!ctl || !ctl->card))
+		return -ENXIO;
 
 	switch (cmd) {
 	case SNDRV_CTL_IOCTL_PVERSION:
diff --git a/sound/core/device.c b/sound/core/device.c
index 202dac0e4d8..c58d8227254 100644
--- a/sound/core/device.c
+++ b/sound/core/device.c
@@ -45,9 +45,8 @@ int snd_device_new(struct snd_card *card, snd_device_type_t type,
 {
 	struct snd_device *dev;
 
-	snd_assert(card != NULL, return -ENXIO);
-	snd_assert(device_data != NULL, return -ENXIO);
-	snd_assert(ops != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card || !device_data || !ops))
+		return -ENXIO;
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (dev == NULL) {
 		snd_printk(KERN_ERR "Cannot allocate device\n");
@@ -80,8 +79,8 @@ int snd_device_free(struct snd_card *card, void *device_data)
 {
 	struct snd_device *dev;
 	
-	snd_assert(card != NULL, return -ENXIO);
-	snd_assert(device_data != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card || !device_data))
+		return -ENXIO;
 	list_for_each_entry(dev, &card->devices, list) {
 		if (dev->device_data != device_data)
 			continue;
@@ -123,8 +122,8 @@ int snd_device_disconnect(struct snd_card *card, void *device_data)
 {
 	struct snd_device *dev;
 
-	snd_assert(card != NULL, return -ENXIO);
-	snd_assert(device_data != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card || !device_data))
+		return -ENXIO;
 	list_for_each_entry(dev, &card->devices, list) {
 		if (dev->device_data != device_data)
 			continue;
@@ -159,8 +158,8 @@ int snd_device_register(struct snd_card *card, void *device_data)
 	struct snd_device *dev;
 	int err;
 
-	snd_assert(card != NULL, return -ENXIO);
-	snd_assert(device_data != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card || !device_data))
+		return -ENXIO;
 	list_for_each_entry(dev, &card->devices, list) {
 		if (dev->device_data != device_data)
 			continue;
@@ -188,7 +187,8 @@ int snd_device_register_all(struct snd_card *card)
 	struct snd_device *dev;
 	int err;
 	
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 	list_for_each_entry(dev, &card->devices, list) {
 		if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) {
 			if ((err = dev->ops->dev_register(dev)) < 0)
@@ -208,7 +208,8 @@ int snd_device_disconnect_all(struct snd_card *card)
 	struct snd_device *dev;
 	int err = 0;
 
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 	list_for_each_entry(dev, &card->devices, list) {
 		if (snd_device_disconnect(card, dev->device_data) < 0)
 			err = -ENXIO;
@@ -226,7 +227,8 @@ int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd)
 	int err;
 	unsigned int range_low, range_high;
 
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 	range_low = cmd * SNDRV_DEV_TYPE_RANGE_SIZE;
 	range_high = range_low + SNDRV_DEV_TYPE_RANGE_SIZE - 1;
       __again:
diff --git a/sound/core/hwdep.c b/sound/core/hwdep.c
index 6d6589f9389..195cafc5a55 100644
--- a/sound/core/hwdep.c
+++ b/sound/core/hwdep.c
@@ -353,9 +353,10 @@ int snd_hwdep_new(struct snd_card *card, char *id, int device,
 		.dev_disconnect = snd_hwdep_dev_disconnect,
 	};
 
-	snd_assert(rhwdep != NULL, return -EINVAL);
-	*rhwdep = NULL;
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
+	if (rhwdep)
+		*rhwdep = NULL;
 	hwdep = kzalloc(sizeof(*hwdep), GFP_KERNEL);
 	if (hwdep == NULL) {
 		snd_printk(KERN_ERR "hwdep: cannot allocate\n");
@@ -374,13 +375,15 @@ int snd_hwdep_new(struct snd_card *card, char *id, int device,
 	}
 	init_waitqueue_head(&hwdep->open_wait);
 	mutex_init(&hwdep->open_mutex);
-	*rhwdep = hwdep;
+	if (rhwdep)
+		*rhwdep = hwdep;
 	return 0;
 }
 
 static int snd_hwdep_free(struct snd_hwdep *hwdep)
 {
-	snd_assert(hwdep != NULL, return -ENXIO);
+	if (!hwdep)
+		return 0;
 	if (hwdep->private_free)
 		hwdep->private_free(hwdep);
 	kfree(hwdep);
@@ -440,7 +443,8 @@ static int snd_hwdep_dev_disconnect(struct snd_device *device)
 {
 	struct snd_hwdep *hwdep = device->device_data;
 
-	snd_assert(hwdep != NULL, return -ENXIO);
+	if (snd_BUG_ON(!hwdep))
+		return -ENXIO;
 	mutex_lock(&register_mutex);
 	if (snd_hwdep_search(hwdep->card, hwdep->device) != hwdep) {
 		mutex_unlock(&register_mutex);
diff --git a/sound/core/info.c b/sound/core/info.c
index c67773ad929..527b207462b 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -217,7 +217,8 @@ static ssize_t snd_info_entry_read(struct file *file, char __user *buffer,
 	loff_t pos;
 
 	data = file->private_data;
-	snd_assert(data != NULL, return -ENXIO);
+	if (snd_BUG_ON(!data))
+		return -ENXIO;
 	pos = *offset;
 	if (pos < 0 || (long) pos != pos || (ssize_t) count < 0)
 		return -EIO;
@@ -258,7 +259,8 @@ static ssize_t snd_info_entry_write(struct file *file, const char __user *buffer
 	loff_t pos;
 
 	data = file->private_data;
-	snd_assert(data != NULL, return -ENXIO);
+	if (snd_BUG_ON(!data))
+		return -ENXIO;
 	entry = data->entry;
 	pos = *offset;
 	if (pos < 0 || (long) pos != pos || (ssize_t) count < 0)
@@ -614,7 +616,8 @@ int snd_info_card_create(struct snd_card *card)
 	char str[8];
 	struct snd_info_entry *entry;
 
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 
 	sprintf(str, "card%i", card->number);
 	if ((entry = snd_info_create_module_entry(card->module, str, NULL)) == NULL)
@@ -636,7 +639,8 @@ int snd_info_card_register(struct snd_card *card)
 {
 	struct proc_dir_entry *p;
 
-	snd_assert(card != NULL, return -ENXIO);
+	if (snd_BUG_ON(!card))
+		return -ENXIO;
 
 	if (!strcmp(card->id, card->proc_root->name))
 		return 0;
@@ -654,7 +658,8 @@ int snd_info_card_register(struct snd_card *card)
  */
 void snd_info_card_disconnect(struct snd_card *card)
 {
-	snd_assert(card != NULL, return);
+	if (!card)
+		return;
 	mutex_lock(&info_mutex);
 	if (card->proc_root_link) {
 		snd_remove_proc_entry(snd_proc_root, card->proc_root_link);
@@ -671,7 +676,8 @@ void snd_info_card_disconnect(struct snd_card *card)
  */
 int snd_info_card_free(struct snd_card *card)
 {
-	snd_assert(card != NULL, return -ENXIO);
+	if (!card)
+		return 0;
 	snd_info_free_entry(card->proc_root);
 	card->proc_root = NULL;
 	return 0;
@@ -849,7 +855,7 @@ static void snd_info_disconnect(struct snd_info_entry *entry)
 		return;
 	list_del_init(&entry->list);
 	root = entry->parent == NULL ? snd_proc_root : entry->parent->p;
-	snd_assert(root, return);
+	snd_BUG_ON(!root);
 	snd_remove_proc_entry(root, entry->p);
 	entry->p = NULL;
 }
@@ -947,7 +953,8 @@ int snd_info_register(struct snd_info_entry * entry)
 {
 	struct proc_dir_entry *root, *p = NULL;
 
-	snd_assert(entry != NULL, return -ENXIO);
+	if (snd_BUG_ON(!entry))
+		return -ENXIO;
 	root = entry->parent == NULL ? snd_proc_root : entry->parent->p;
 	mutex_lock(&info_mutex);
 	p = snd_create_proc_entry(entry->name, entry->mode, root);
diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c
index e35789a9275..e4af138d651 100644
--- a/sound/core/info_oss.c
+++ b/sound/core/info_oss.c
@@ -43,8 +43,10 @@ int snd_oss_info_register(int dev, int num, char *string)
 {
 	char *x;
 
-	snd_assert(dev >= 0 && dev < SNDRV_OSS_INFO_DEV_COUNT, return -ENXIO);
-	snd_assert(num >= 0 && num < SNDRV_CARDS, return -ENXIO);
+	if (snd_BUG_ON(dev < 0 || dev >= SNDRV_OSS_INFO_DEV_COUNT))
+		return -ENXIO;
+	if (snd_BUG_ON(num < 0 || num >= SNDRV_CARDS))
+		return -ENXIO;
 	mutex_lock(&strings);
 	if (string == NULL) {
 		if ((x = snd_sndstat_strings[num][dev]) != NULL) {
diff --git a/sound/core/init.c b/sound/core/init.c
index df46bbc25dc..8af467df924 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -545,7 +545,8 @@ int snd_card_register(struct snd_card *card)
 {
 	int err;
 
-	snd_assert(card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!card))
+		return -EINVAL;
 #ifndef CONFIG_SYSFS_DEPRECATED
 	if (!card->card_dev) {
 		card->card_dev = device_create_drvdata(sound_class, card->dev,
diff --git a/sound/core/jack.c b/sound/core/jack.c
new file mode 100644
index 00000000000..8133a2b173a
--- /dev/null
+++ b/sound/core/jack.c
@@ -0,0 +1,163 @@
+/*
+ *  Jack abstraction layer
+ *
+ *  Copyright 2008 Wolfson Microelectronics
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#include <linux/input.h>
+#include <sound/jack.h>
+#include <sound/core.h>
+
+static int snd_jack_dev_free(struct snd_device *device)
+{
+	struct snd_jack *jack = device->device_data;
+
+	/* If the input device is registered with the input subsystem
+	 * then we need to use a different deallocator. */
+	if (jack->registered)
+		input_unregister_device(jack->input_dev);
+	else
+		input_free_device(jack->input_dev);
+
+	kfree(jack);
+
+	return 0;
+}
+
+static int snd_jack_dev_register(struct snd_device *device)
+{
+	struct snd_jack *jack = device->device_data;
+	struct snd_card *card = device->card;
+	int err;
+
+	snprintf(jack->name, sizeof(jack->name), "%s %s",
+		 card->longname, jack->id);
+	jack->input_dev->name = jack->name;
+
+	/* Default to the sound card device. */
+	if (!jack->input_dev->dev.parent)
+		jack->input_dev->dev.parent = card->dev;
+
+	err = input_register_device(jack->input_dev);
+	if (err == 0)
+		jack->registered = 1;
+
+	return err;
+}
+
+/**
+ * snd_jack_new - Create a new jack
+ * @card:  the card instance
+ * @id:    an identifying string for this jack
+ * @type:  a bitmask of enum snd_jack_type values that can be detected by
+ *         this jack
+ * @jjack: Used to provide the allocated jack object to the caller.
+ *
+ * Creates a new jack object.
+ *
+ * Returns zero if successful, or a negative error code on failure.
+ * On success jjack will be initialised.
+ */
+int snd_jack_new(struct snd_card *card, const char *id, int type,
+		 struct snd_jack **jjack)
+{
+	struct snd_jack *jack;
+	int err;
+	static struct snd_device_ops ops = {
+		.dev_free = snd_jack_dev_free,
+		.dev_register = snd_jack_dev_register,
+	};
+
+	jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL);
+	if (jack == NULL)
+		return -ENOMEM;
+
+	jack->id = id;
+
+	jack->input_dev = input_allocate_device();
+	if (jack->input_dev == NULL) {
+		err = -ENOMEM;
+		goto fail_input;
+	}
+
+	jack->input_dev->phys = "ALSA";
+
+	jack->type = type;
+
+	if (type & SND_JACK_HEADPHONE)
+		input_set_capability(jack->input_dev, EV_SW,
+				     SW_HEADPHONE_INSERT);
+	if (type & SND_JACK_MICROPHONE)
+		input_set_capability(jack->input_dev, EV_SW,
+				     SW_MICROPHONE_INSERT);
+
+	err = snd_device_new(card, SNDRV_DEV_JACK, jack, &ops);
+	if (err < 0)
+		goto fail_input;
+
+	*jjack = jack;
+
+	return 0;
+
+fail_input:
+	input_free_device(jack->input_dev);
+	kfree(jack);
+	return err;
+}
+EXPORT_SYMBOL(snd_jack_new);
+
+/**
+ * snd_jack_set_parent - Set the parent device for a jack
+ *
+ * @jack:   The jack to configure
+ * @parent: The device to set as parent for the jack.
+ *
+ * Set the parent for the jack input device in the device tree.  This
+ * function is only valid prior to registration of the jack.  If no
+ * parent is configured then the parent device will be the sound card.
+ */
+void snd_jack_set_parent(struct snd_jack *jack, struct device *parent)
+{
+	WARN_ON(jack->registered);
+
+	jack->input_dev->dev.parent = parent;
+}
+EXPORT_SYMBOL(snd_jack_set_parent);
+
+/**
+ * snd_jack_report - Report the current status of a jack
+ *
+ * @jack:   The jack to report status for
+ * @status: The current status of the jack
+ */
+void snd_jack_report(struct snd_jack *jack, int status)
+{
+	if (jack->type & SND_JACK_HEADPHONE)
+		input_report_switch(jack->input_dev, SW_HEADPHONE_INSERT,
+				    status & SND_JACK_HEADPHONE);
+	if (jack->type & SND_JACK_MICROPHONE)
+		input_report_switch(jack->input_dev, SW_MICROPHONE_INSERT,
+				    status & SND_JACK_MICROPHONE);
+
+	input_sync(jack->input_dev);
+}
+EXPORT_SYMBOL(snd_jack_report);
+
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("Jack detection support for ALSA");
+MODULE_LICENSE("GPL");
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 3733351a27f..1b3534d6768 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -43,14 +43,6 @@ MODULE_LICENSE("GPL");
 /*
  */
 
-void *snd_malloc_sgbuf_pages(struct device *device,
-                             size_t size, struct snd_dma_buffer *dmab,
-			     size_t *res_size);
-int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab);
-
-/*
- */
-
 static DEFINE_MUTEX(list_mutex);
 static LIST_HEAD(mem_list_head);
 
@@ -64,18 +56,6 @@ struct snd_mem_list {
 /* id for pre-allocated buffers */
 #define SNDRV_DMA_DEVICE_UNUSED (unsigned int)-1
 
-#ifdef CONFIG_SND_DEBUG
-#define __ASTRING__(x) #x
-#define snd_assert(expr, args...) do {\
-	if (!(expr)) {\
-		printk(KERN_ERR "snd-malloc: BUG? (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\
-		args;\
-	}\
-} while (0)
-#else
-#define snd_assert(expr, args...) /**/
-#endif
-
 /*
  *
  *  Generic memory allocators
@@ -108,8 +88,10 @@ void *snd_malloc_pages(size_t size, gfp_t gfp_flags)
 	int pg;
 	void *res;
 
-	snd_assert(size > 0, return NULL);
-	snd_assert(gfp_flags != 0, return NULL);
+	if (WARN_ON(!size))
+		return NULL;
+	if (WARN_ON(!gfp_flags))
+		return NULL;
 	gfp_flags |= __GFP_COMP;	/* compound page lets parts be mapped */
 	pg = get_order(size);
 	if ((res = (void *) __get_free_pages(gfp_flags, pg)) != NULL)
@@ -149,8 +131,8 @@ static void *snd_malloc_dev_pages(struct device *dev, size_t size, dma_addr_t *d
 	void *res;
 	gfp_t gfp_flags;
 
-	snd_assert(size > 0, return NULL);
-	snd_assert(dma != NULL, return NULL);
+	if (WARN_ON(!dma))
+		return NULL;
 	pg = get_order(size);
 	gfp_flags = GFP_KERNEL
 		| __GFP_COMP	/* compound page lets parts be mapped */
@@ -200,8 +182,10 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr,
 int snd_dma_alloc_pages(int type, struct device *device, size_t size,
 			struct snd_dma_buffer *dmab)
 {
-	snd_assert(size > 0, return -ENXIO);
-	snd_assert(dmab != NULL, return -ENXIO);
+	if (WARN_ON(!size))
+		return -ENXIO;
+	if (WARN_ON(!dmab))
+		return -ENXIO;
 
 	dmab->dev.type = type;
 	dmab->dev.dev = device;