- 15 1月, 2010 1 次提交
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This is needed for built-in drivers which are built before the sound directory, like thinkpad_acpi. Otherwise, registering a card fails. Signed-off-by: NThadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 07 1月, 2009 1 次提交
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由 Laurent Pinchart 提交于
Several subsystem open handlers dereference the fops_get() return value without checking it for nullness. This opens a race condition between the open handler and module unloading. A module can be marked as being unloaded (MODULE_STATE_GOING) before its exit function is called and gets the chance to unregister the driver. During that window open handlers can still be called, and fops_get() will fail in try_module_get() and return a NULL pointer. This change checks the fops_get() return value and returns -ENODEV if NULL. Reported-by: NAlan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: NLaurent Pinchart <laurent.pinchart@skynet.be> Acked-by: NTakashi Iwai <tiwai@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Dave Airlie <airlied@linux.ie> Acked-by: NMauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 17 10月, 2008 1 次提交
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由 Greg Kroah-Hartman 提交于
Now that device_create() has been audited, rename things back to the original call to be sane. Cc: Jaroslav Kysela <perex@perex.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 13 8月, 2008 1 次提交
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由 Takashi Iwai 提交于
Kill snd_assert() in sound/core/*, either removed or replaced with if () with snd_BUG_ON(). Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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- 01 8月, 2008 2 次提交
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由 Pawel MOLL 提交于
When compiled with CONFIG_SND_DYNAMIC_MINORS the ALSA core is fine to have more than 8 PCM devices per card, except one place - the SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE ioctl, which will not enumerate devices > 7. This patch fixes the issue, changing the devices list organisation. Instead of adding new device to the tail, the list is now kept always ordered (by card number, then device number). Thus, during enumeration, it is easy to discover the fact that there is no more given card's devices. Additionally the device field of struct snd_pcm had to be changed to int, as its "unsignednity" caused a lot of problems when comparing it to potentially negative signed values. (-1 is 0xffffffff or even more then ;-) Signed-off-by: NPawel Moll <pawel.moll@st.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Jaroslav Kysela 提交于
This reverts commit fb3d6f2b77bdec75d45aa9d4464287ed87927866. New, updated patch with same subject replaces this commit. Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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- 30 7月, 2008 1 次提交
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由 Pawel MOLL 提交于
When compiled with CONFIG_SND_DYNAMIC_MINORS the ALSA core is fine to have more than 8 PCM devices per card, except one place - the SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE ioctl, which will not enumerate devices > 7. This patch fixes the issue, changing the devices list organisation. Instead of adding new device to the tail, the list is now kept always ordered (by card number, then device number). Thus, during enumeration, it is easy to discover the fact that there is no more given card's devices. The same limit was present in OSS emulation code. It has been fixed as well. Additionally the device field of struct snd_pcm is now int, instead of unsigned int, as there is no obvious reason for keeping it unsigned. This caused a lot of problems with comparing this value with other (almost always signed) variables. There is just one more place where device number is unsigned - in struct snd_pcm_info, which should be also sorted out in future. Signed-off-by: NPawel MOLL <pawel.moll@st.com> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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- 10 7月, 2008 1 次提交
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由 Johannes Berg 提交于
A bunch of things in alsa depend on CONFIG_KMOD, use CONFIG_MODULES instead where the dependency is needed at all. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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- 21 6月, 2008 1 次提交
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由 Jonathan Corbet 提交于
Signed-off-by: NJonathan Corbet <corbet@lwn.net>
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- 21 5月, 2008 1 次提交
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由 Greg Kroah-Hartman 提交于
There is a race from when a device is created with device_create() and then the drvdata is set with a call to dev_set_drvdata() in which a sysfs file could be open, yet the drvdata will be NULL, causing all sorts of bad things to happen. This patch fixes the problem by using the new function, device_create_drvdata(). Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Jaroslav Kysela <perex@perex.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 15 2月, 2008 1 次提交
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由 Jan Blunck 提交于
The sound drivers and the pnpbios core test for current->root != NULL. This test seems to be unnecessary since we always have rootfs mounted before initializing the drivers. Signed-off-by: NJan Blunck <jblunck@suse.de> Acked-by: NChristoph Hellwig <hch@lst.de> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Jaroslav Kysela <perex@suse.cz> Acked-by: NTakashi Iwai <tiwai@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 01 2月, 2008 1 次提交
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由 Takashi Iwai 提交于
This header file exists only for some hacks to adapt alsa-driver tree. It's useless for building in the kernel. Let's move a few lines in it to sound/core.h and remove it. With this patch, sound/driver.h isn't removed but has just a single compile warning to include it. This should be really killed in future. Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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- 16 10月, 2007 2 次提交
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由 Jaroslav Kysela 提交于
Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Mariusz Kozlowski 提交于
snd_register_device_for_dev() can oops when device_create() returns ERR_PTR(err). Scenario: preg->dev = device_create(...); /* fails */ if (preg->dev) /* contains ERR_PTR(err) */ dev_set_drvdata(preg->dev, private_data); and dev_set_drvdata() looks like this: static inline void dev_set_drvdata (struct device *dev, void *data) { dev->driver_data = data; <--- boom } This patch should prevent that. Signed-off-by: NMariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@suse.cz>
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- 20 7月, 2007 1 次提交
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由 Akinobu Mita 提交于
unregister_chrdev() always returns 0. There is no need to check the return value. Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 13 2月, 2007 1 次提交
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由 Arjan van de Ven 提交于
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: NArjan van de Ven <arjan@linux.intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 2月, 2007 1 次提交
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由 Johannes Berg 提交于
This patch adds snd_register_device_for_dev taking a struct device pointer to link the new device to and makes snd_register_device a simple static inline wrapper around it. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@suse.cz>
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- 30 1月, 2007 1 次提交
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由 Takashi Iwai 提交于
The recent change for a new sysfs tree with card* object breaks the /sys/class/sound tree if CONFIG_SYSFS_DEPRECATED is enabled. The device in each entry doesn't point the correct device object: /sys/class/sound ... |-- pcmC0D0c | |-- dev | |-- device -> ../../../class/sound/card0 | |-- pcm_class | |-- power | | `-- wakeup | |-- subsystem -> ../../../class/sound | `-- uevent Also, this change breaks some drivers (like sound/arm/*) referring card->dev directly to obtain the device object for memory handling. This patch reverts the semantics of card->dev to the former version, which points to a real device object. The card* object is stored in a new card->card_dev field, instead. The device parent is chosen either card->dev or card->card_dev according to CONFIG_SYSFS_DEPRECATED to keep the tree compatibility. Also, card* isn't created if CONFIG_SYSFS_DEPRECATED is enabled. The reason of card* object is a root of all beloing devices, and it makes little sense if each sound device points to the real device object directly. Signed-off-by: NTakashi Iwai <tiwai@suse.de> Acked-by: NMonty Montgomery <xiphmont@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 02 12月, 2006 1 次提交
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由 Greg Kroah-Hartman 提交于
Converts from using struct "class_device" to "struct device" making everything show up properly in /sys/devices/ with symlinks from the /sys/class directory. It also makes the struct sound_card to show up as a "real" device where all the different sound class devices are placed as childs and different card attribute files can hang off of. /sys/class/sound is still a flat directory, but the symlink targets of all devices belonging to the same card, point the the /sys/devices tree below the new card device object. Thanks to Kay for the updates to this patch. Signed-off-by: NKay Sievers <kay.sievers@novell.com> Acked-by: NJaroslav Kysela <perex@suse.cz> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 23 9月, 2006 2 次提交
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由 Takashi Iwai 提交于
This patch adds a new attribute, pcm_class, to each PCM sysfs entry. It's useful to detect what kind of PCM stream is, for example, HAL can check whether it's a modem or not. Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@suse.cz>
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由 Takashi Iwai 提交于
- Add the linked list to each proc entry to enable a single-shot disconnection (unregister) - Deprecate snd_info_unregister(), use snd_info_free_entry() - Removed NULL checks of snd_info_free_entry() Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@suse.cz>
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- 13 7月, 2006 1 次提交
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由 Clemens Ladisch 提交于
Drop the snd_minor structure's name field that was just a helper for devfs device deregistration. Signed-off-by: NClemens Ladisch <clemens@ladisch.de> Signed-off-by: NJaroslav Kysela <perex@suse.cz>
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- 27 6月, 2006 1 次提交
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由 Greg Kroah-Hartman 提交于
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 23 6月, 2006 4 次提交
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由 Takashi Iwai 提交于
Removed zero-initializations of static variables. A tiny optimization. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Fixed rwlock around snd_iprintf() in sound core part. Replaced with mutex. Also, make mutex and flags static variables with addition of snd_card_locked() function (just for sound.c). Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Remove unneeded read/write_size fields in proc text ops. snd_info_set_text_ops() is fixed, too. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Move EXPORT_SYMBOL()s to places adjacent to functions/variables. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 29 3月, 2006 1 次提交
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由 Arjan van de Ven 提交于
Mark the f_ops members of inodes as const, as well as fix the ripple-through this causes by places that copy this f_ops and then "do stuff" with it. Signed-off-by: NArjan van de Ven <arjan@infradead.org> Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 22 3月, 2006 2 次提交
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由 Adrian Bunk 提交于
Modules: ALSA Core This patch fixes three off-by-one errors found by the Coverity checker. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Ingo Molnar 提交于
Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 04 1月, 2006 1 次提交
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由 Takashi Iwai 提交于
Modules: ALSA Core Revert the nested-device patch to keep the compatibility with the current HAL configuration. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 03 1月, 2006 9 次提交
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由 Clemens Ladisch 提交于
Modules: ALSA Core Make the control device parent of all other ALSA devices of a card. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Takashi Iwai 提交于
Modules: HWDEP Midlevel,ALSA Core,PCM Midlevel,Timer Midlevel Optimize the code when compiled without CONFIG_PROC_FS. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Modules: ALSA Core Fix missing include <linux/device.h> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Clemens Ladisch 提交于
Modules: ALSA Core,Memalloc module,ALSA sequencer With dynamic minor numbers, we can increase the number of sound cards. This requires that the sequencer client numbers of some kernel drivers are allocated dynamically, too. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Modules: ALSA Core,ALSA Minor Numbers Add an option to allocate device file minor numbers dynamically. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Instead of storing the pointers to the device-specific structures in an array, put them into the struct snd_minor, and look them up dynamically. This makes the device type modules independent of the minor number encoding. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Modules: ALSA Core Store the snd_minor structure pointers in one array instead of using a separate list for each card. This simplifies the mapping from device files to minor struct by removing the need to know about the encoding of the card number in the minor number. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Instead of a comment string, store the device type in the snd_minor structure. This makes snd_minor more flexible, and has the nice side effect that we don't need anymore to create a separate snd_minor template for registering a device but can pass the file_operations directly to snd_register_device(). Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Takashi Iwai 提交于
Modules: ALSA Core,Control Midlevel,/oss/Makefile Remove the centralized PM control in the sound core. Each driver is responsible to get callbacks from bus/driver now. SND_GENERIC_DRIVER is removed together with this action. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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