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2019-08-26ALSA: usb-audio: remove some dead codeDan Carpenter1-1/+0
We recently cleaned up the error handling in commit 52c3e317a857 ("ALSA: usb-audio: Unify the release of usb_mixer_elem_info objects") but accidentally left this stray return. Fixes: 52c3e317a857 ("ALSA: usb-audio: Unify the release of usb_mixer_elem_info objects") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-26ALSA: usb-audio: Fix possible NULL dereference at create_yamaha_midi_quirk()Takashi Iwai1-2/+2
The previous addition of descriptor validation may lead to a NULL dereference at create_yamaha_midi_quirk() when either injd or outjd is NULL. Add proper non-NULL checks. Fixes: 57f8770620e9 ("ALSA: usb-audio: More validations of descriptor units") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-25ALSA: usb-audio: Clean up check_input_term()Takashi Iwai1-192/+209
The primary changes in this patch are cleanups of __check_input_term() and move to a non-nested switch-case block by evaluating the pair of UAC version and the unit type, as we've done for parse_audio_unit(). Also each parser is split into the function for readability. Now, a slight behavior change by this cleanup is the handling of processing and extension units. Formerly we've dealt with them differently between UAC1/2 and UAC3; the latter returns an error if no input sources are available, while the former continues to parse. In this patch, unify the behavior in all cases: when input sources are available, it parses recursively, then override the type and the id, as well as channel information if not provided yet. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22Merge branch 'topic/usb-validation' into for-nextTakashi Iwai22-252/+628
Pull USB validation patches. It's based on the latest 5.3 development branch, so we shall catch up the whole things. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22ALSA: usb-audio: Remove superfluous bLength checksTakashi Iwai2-92/+6
Now that we got the more comprehensive validation code for USB-audio descriptors, the check of overflow in each descriptor unit parser became superfluous. Drop some of the obvious cases. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22ALSA: usb-audio: Unify the release of usb_mixer_elem_info objectsTakashi Iwai1-20/+28
Instead of the direct kfree() calls, introduce a new local helper to release the usb_mixer_elem_info object. This will be extended to do more than a single kfree() in the later patches. Also, use the standard goto instead of multiple calls in parse_audio_selector_unit() error paths. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22ALSA: usb-audio: Simplify parse_audio_unit()Takashi Iwai1-56/+39
Minor code refactoring by combining the UAC version and the type in the switch-case flow, so that we reduce the indentation and redundancy. One good bonus is that the duplicated definition of the same type value (e.g. UAC2_EFFECT_UNIT) can be handled more cleanly. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22ALSA: usb-audio: More validations of descriptor unitsTakashi Iwai7-13/+366
Introduce a new helper to validate each audio descriptor unit before and check the unit before actually accessing it. This should harden against the OOB access cases with malformed descriptors that have been recently frequently reported by fuzzers. The existing descriptor checks are still kept although they become superfluous after this patch. They'll be cleaned up eventually later. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22ALSA: usb-audio: Check mixer unit bitmap yet more strictlyTakashi Iwai1-8/+28
The bmControls (for UAC1) or bmMixerControls (for UAC2/3) bitmap has a variable size depending on both input and output pins. Its size is to fit with input * output bits. The problem is that the input size can't be determined simply from the unit descriptor itself but it needs to parse the whole connected sources. Although the uac_mixer_unit_get_channels() tries to check some possible overflow of this bitmap, it's incomplete due to the lack of the evaluation of input pins. For covering possible overflows, this patch adds the bitmap overflow check in the loop of input pins in parse_audio_mixer_unit(). Fixes: 0bfe5e434e66 ("ALSA: usb-audio: Check mixer unit descriptors more strictly") Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22ALSA: hda/realtek - Blacklist PC beep for Lenovo ThinkCentre M73/93Takashi Iwai1-0/+3
Lenovo ThinkCentre M73 and M93 don't seem to have a proper beep although the driver tries to probe and set up blindly. Blacklist these machines for suppressing the beep creation. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204635 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-22ALSA: hda/realtek - Check beep whitelist before assigning in all codecsTakashi Iwai1-3/+6
Some Realtek codec parsers didn't check the availability of PC beep. Add has_cdefine_beep() check appropriately. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-21ALSA: line6: Fix memory leak at line6_init_pcm() error pathTakashi Iwai1-9/+9
I forgot to release the allocated object at the early error path in line6_init_pcm(). For addressing it, slightly shuffle the code so that the PCM destructor (pcm->private_free) is assigned properly before all error paths. Fixes: 3450121997ce ("ALSA: line6: Fix write on zero-sized buffer") Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-21ALSA: usb-audio: Fix invalid NULL check in snd_emuusb_set_samplerate()Takashi Iwai1-4/+4
The quirk function snd_emuusb_set_samplerate() has a NULL check for the mixer element, but this is useless in the current code. It used to be a check against mixer->id_elems[unitid] but it was changed later to the value after mixer_eleme_list_to_info() which is always non-NULL due to the container_of() usage. This patch fixes the check before the conversion. While we're at it, correct a typo in the comment in the function, too. Fixes: 8c558076c740 ("ALSA: usb-audio: Clean up mixer element list traverse") Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-20ALSA: hda/ca0132 - Add new SBZ quirkPaweł Rekowski1-0/+1
This patch adds a new PCI subsys ID for the SBZ, as found and tested by me and some reddit users. Link: https://lore.kernel.org/lkml/20190819204008.14426-1-p.rekowski@gmail.com Signed-off-by: Paweł Rekowski <p.rekowski@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-20ALSA: usb-audio: Add implicit fb quirk for Behringer UFX1604Takashi Iwai1-0/+1
Behringer UFX1604 requires the similar quirk to apply implicit fb like another Behringer model UFX1204 in order to fix the noisy playback. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204631 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-19ALSA: hda - Fixes inverted Conexant GPIO mic mute ledJeronimo Borque1-8/+9
"enabled" parameter historically referred to the device input or output, not to the led indicator. After the changes added with the led helper functions the mic mute led logic refers to the led and not to the mic input which caused led indicator to be negated. Fixing logic in cxt_update_gpio_led and updated cxt_fixup_gpio_mute_hook Also updated debug messages to ease further debugging if necessary. Fixes: 184e302b46c9 ("ALSA: hda/conexant - Use the mic-mute LED helper") Suggested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jeronimo Borque <jeronimo@borque.com.ar> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-16ALSA: hda - Define a fallback_pin_fixup_tbl for alc269 familyHui Wang1-4/+14
We have another Dell laptop which needs the DELL4_MIC_NO_PRESENCE, and this laptop has different pincfg definitions from existing ones in the pintbl, rather adding a new entry, let us define a tbl in the fallback_pin_fixup_tbl and this tbl will match all dell machines with alc289 codec and the pins of 0x19 and 0x1b are undef by default. Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-16ALSA: hda - Expand pin_match function to match upcoming new tblsHui Wang3-7/+12
With the existing pintbl, we already have many entries in it. it is better to figure out a new way to reduce the size of the pintbl. We plan to define a new tbl which will match more machines with a single tbl, To do that, this function doesn't need to match all valid pins between machine and tbl, it just needs to match all pins defined in the tbl with the machine. And the plan is to move some tbls from pin_fixup_tbl to fallback_pin_fixup_tbl gradually. Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-15ALSA: usb-audio: Fix a stack buffer overflow bug in check_input_termHui Peng1-8/+27
`check_input_term` recursively calls itself with input from device side (e.g., uac_input_terminal_descriptor.bCSourceID) as argument (id). In `check_input_term`, if `check_input_term` is called with the same `id` argument as the caller, it triggers endless recursive call, resulting kernel space stack overflow. This patch fixes the bug by adding a bitmap to `struct mixer_build` to keep track of the checked ids and stop the execution if some id has been checked (similar to how parse_audio_unit handles unitid argument). Reported-by: Hui Peng <benquike@gmail.com> Reported-by: Mathias Payer <mathias.payer@nebelwelt.net> Signed-off-by: Hui Peng <benquike@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-15Revert "ALSA: hda: Add codec on bus address table lately"Takashi Iwai1-12/+9
This reverts commit ee5f85d9290f ("ALSA: hda: Add codec on bus address table lately"). The commit caused several regression since I've overlooked that the function doesn't manage only the caddr_tbl but also the codec linked list that is referred indirectly in the other drivers. Revert for now to make everything back to work. Fixes: ee5f85d9290f ("ALSA: hda: Add codec on bus address table lately") Reported-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: usb-audio: Fix an OOB bug in parse_audio_mixer_unitHui Peng1-0/+2
The `uac_mixer_unit_descriptor` shown as below is read from the device side. In `parse_audio_mixer_unit`, `baSourceID` field is accessed from index 0 to `bNrInPins` - 1, the current implementation assumes that descriptor is always valid (the length of descriptor is no shorter than 5 + `bNrInPins`). If a descriptor read from the device side is invalid, it may trigger out-of-bound memory access. ``` struct uac_mixer_unit_descriptor { __u8 bLength; __u8 bDescriptorType; __u8 bDescriptorSubtype; __u8 bUnitID; __u8 bNrInPins; __u8 baSourceID[]; } ``` This patch fixes the bug by add a sanity check on the length of the descriptor. Reported-by: Hui Peng <benquike@gmail.com> Reported-by: Mathias Payer <mathias.payer@nebelwelt.net> Cc: <stable@vger.kernel.org> Signed-off-by: Hui Peng <benquike@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: hda: Unexport a few more stuffTakashi Iwai5-12/+9
Drop EXPORT_SYMBOL*() from a few more stuff in HD-audio core that aren't used outside. Particular the unsol event handler can be staticized now because the recent change removed all external callers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: hda: Drop export of snd_hdac_bus_add/remove_device()Takashi Iwai3-5/+5
snd_hdac_bus_add_device() and snd_hdac_remove_device() are called only internally in hda-core. Let's drop the exports of them and move the declarations into local.h. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: hda: Add codec on bus address table latelyTakashi Iwai1-9/+12
The call of snd_hdac_bus_add_device() is needed only for registering the codec onto the bus caddr_tbl[] that is referred essentially only in the unsol event handler. That is, the reason of this call and the release by the counter-part function snd_hdac_bus_remove_device() is just to assure that the unsol event gets notified to the codec. But the current implementation of the unsol notification wouldn't work properly when the codec is still in a premature init state. So this patch tries to work around it by delaying the caddr_tbl[] registration at the point of snd_hdac_device_register(). Also, the order of snd_hdac_bus_remove_device() and device_del() calls are shuffled to make sure that the unsol event is masked before deleting the device. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204565 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: hda - Drop unsol event handler for Intel HDMI codecsTakashi Iwai1-1/+8
We don't need to deal with the unsol events for Intel chips that are tied with the graphics via audio component notifier. Although the presence of the audio component is checked at the beginning of hdmi_unsol_event(), better to short cut by dropping unsol_event ops. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204565 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: sb: remove redundant assignment to variable resultColin Ian King1-1/+1
Variable result is initialized to a value that is never read and it is re-assigned later. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: hda - Add a generic reboot_notifyHui Wang4-15/+22
Make codec enter D3 before rebooting or poweroff can fix the noise issue on some laptops. And in theory it is harmless for all codecs to enter D3 before rebooting or poweroff, let us add a generic reboot_notify, then realtek and conexant drivers can call this function. Cc: stable@vger.kernel.org Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-14ALSA: hda - Let all conexant codec enter D3 when rebootingHui Wang1-9/+0
We have 3 new lenovo laptops which have conexant codec 0x14f11f86, these 3 laptops also have the noise issue when rebooting, after letting the codec enter D3 before rebooting or poweroff, the noise disappers. Instead of adding a new ID again in the reboot_notify(), let us make this function apply to all conexant codec. In theory make codec enter D3 before rebooting or poweroff is harmless, and I tested this change on a couple of other Lenovo laptops which have different conexant codecs, there is no side effect so far. Cc: stable@vger.kernel.org Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-13ALSA: hda/sigmatel - remove unused variable 'stac9200_core_init'YueHaibing1-9/+0
sound/pci/hda/patch_sigmatel.c:981:30: warning: stac9200_core_init defined but not used [-Wunused-const-variable=] It is never used, so can be removed. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-13ALSA: hda/realtek - Add quirk for HP Envy x360Takashi Iwai1-0/+1
HP Envy x360 (AMD Ryzen-based model) with 103c:8497 needs the same quirk like HP Spectre x360 for enabling the mute LED over Mic3 pin. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=204373 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-12ALSA: hda: Set fifo_size for both playback and capture streamsTakashi Iwai2-12/+2
Currently we set hdac_stream.fifo_size field only for the playback stream by some odd reason I forgot, while this field isn't referred in any places. Actually this fifo_size field would have been required in the position report correction for VIA chipset, but due to the lack of the fifo_size set for capture streams, snd-hda-intel driver fetches the register by itself. This patch straightens and simplifies the code by setting the fifo_size field for both playback and capture streams, and use it in the HD-audio controller driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-10ALSA: hda - Fix a memory leak bugWenwen Wang1-1/+1
In snd_hda_parse_generic_codec(), 'spec' is allocated through kzalloc(). Then, the pin widgets in 'codec' are parsed. However, if the parsing process fails, 'spec' is not deallocated, leading to a memory leak. To fix the above issue, free 'spec' before returning the error. Fixes: 352f7f914ebb ("ALSA: hda - Merge Realtek parser code to generic parser") Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09ALSA: hda - Add a quirk model for fixing Huawei Matebook X right speakerTomas Espeleta2-0/+77
[ This is rather a revival of the patch Tomas sent in months ago, but applying only with the quirk model option -- tiwai ] Hard coded coefficients to make Huawuei Matebook X right speaker work. The Matebook X has a ALC298, please refer to bug 197801 on how these numbers were reverse engineered from the Windows driver The reversed engineered sequence represents a repeating pattern of verbs, and the only values that are changing periodically are written on indexes 0x23 and 0x25: 0x500, 0x23 0x400, VALUE1 0x500, 0x25 0x400, VALUE2 * skipped reading sequences (0x500 - 0xc00 sequences are ignored) * static values from reverse engineering are used NOTE: since a significant risk is still considered, this is provided as an experimental fix that isn't applied as default for now. For enabling the fix, you'll have to choose huawei-mbx-stereo via model option of snd-hda-intel module. If we get feedback from users that this works stably, we may apply it per default. [ Some coding style fixes and replacement with AC_VERB_* by tiwai ] BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=197801 Signed-off-by: Tomas Espeleta <tomas.espeleta@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09ALSA: hda - Inform too slow responsesTakashi Iwai1-2/+11
For the sake of debugging, show each response that took too long time and its corresponding last verb. Since such an error happens in series once when started, use the ratelimited variant for suppressing the flood. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09Merge branch 'topic/hda-bus-ops-cleanup' into for-nextTakashi Iwai2-3/+1
Pull yet another compile error fix in the previous HD-audio patchset. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09ASoC: SOF: Intel: Add missing include file hdac_hda.hYueHaibing2-3/+1
Building with SND_SOC_SOF_HDA_AUDIO_CODEC fails: sound/soc/sof/intel/hda-bus.c: In function sof_hda_bus_init: sound/soc/sof/intel/hda-bus.c:16:25: error: implicit declaration of function snd_soc_hdac_hda_get_ops; did you mean snd_soc_jack_add_gpiods? [-Werror=implicit-function-declaration] #define sof_hda_ext_ops snd_soc_hdac_hda_get_ops() Reported-by: Hulk Robot <hulkci@huawei.com> Suggested-by: Takashi Iwai <tiwai@suse.de> Fixes: d4ff1b3917a5 ("ASoC: SOF: Intel: Initialize hdaudio bus properly") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09ALSA: ac97: remove unused variable 'snd_ac97_controls_master_mono'YueHaibing1-5/+0
sound/pci/ac97/ac97_codec.c:599:38: warning: snd_ac97_controls_master_mono defined but not used [-Wunused-const-variable=] It is never used, so can be removed. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09ALSA: hda - Apply workaround for another AMD chip 1022:1487Takashi Iwai1-0/+3
MSI MPG X570 board is with another AMD HD-audio controller (PCI ID 1022:1487) and it requires the same workaround applied for X370, etc (PCI ID 1022:1457). BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=195303 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09Merge branch 'topic/hda-bus-ops-cleanup' into for-nextTakashi Iwai1-0/+1
Pull the compile fix on arm due to missing include. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-09ALSA: hda: readl/writel need linux/io.hStephen Rothwell1-0/+1
Fixes: 19abfefd4c76 ("ALSA: hda: Direct MMIO accesses") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-08Merge branch 'topic/hda-bus-ops-cleanup' into for-nextTakashi Iwai18-371/+107
Pull HD-audio bus ops cleanups. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-08ASoC: SOF: Intel: Initialize hdaudio bus properlyTakashi Iwai3-29/+11
The SOF HD-audio bus has its house-made initialization code. It's supposedly for making the code independent from HD-audio bus drivers. However, this is error-prone, and above all, the SOF driver has already dependency on HD-audio bus driver when CONFIG_SND_SOF_HDA is set. That is, if this Kconfig is set, there is no reason to avoid the call to the proper bus init function. Also, the ext_ops that is set at bus initialization can be better handled inside sof_hda_bus_init(). We don't need to refer this outside the bus initialization. So this patch addresses these issues: - sof_hda_bus_init() calls nothing but snd_hdac_ext_bus_init() when CONFIG_SND_SOF_HDA is set. Otherwise some fields are initialized locally like before for avoiding the dependency. - ext_ops is referred inside sof_hda_bus_init(). The ext_ops argument of snd_hda_bus_init() is dropped. Acked-by: Mark Brown <broonie@kernel.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-08ALSA: hda: Direct MMIO accessesTakashi Iwai13-248/+75
HD-audio drivers access to the mmio registers indirectly via the corresponding bus->io_ops callbacks. This is because some platform (notably Tegra SoC) requires the word-aligned access. But it's rather a rare case, and other platforms suffer from the penalties by indirect calls unnecessarily. This patch is an attempt to optimize and cleanup for this situation. Now the special aligned access is used only when a new kconfig CONFIG_SND_HDA_ALIGNED_MMIO is set. And the HD-audio core itself provides the aligned MMIO access helpers instead of the driver side. If Kconfig isn't set (as default), the standard helpers like readl() or writel() are used directly. A couple of places in ASoC Intel drivers have the access via io_ops reg_writel(), and they are replaced with the direct writel() calls. And now with this patch, the whole bus->io_ops becomes empty, so it's dropped completely. The bus initialization functions are changed accordingly as well to drop the whole bus->io_ops. Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-08ALSA: hda: Remove page allocation redirectionTakashi Iwai9-94/+21
The HD-audio core allocates and releases pages via driver's specific dma_alloc_pages and dma_free_pages ops defined in bus->io_ops. This was because some platforms require the uncached pages and the handling of page flags had to be done locally in the driver code. Since the recent change in ALSA core memory allocator, we can simply pass SNDRV_DMA_TYPE_DEV_UC for the uncached pages, and the only difference became about this type to be passed to the core allocator. That is, it's good time for cleaning up the mess. This patch changes the allocation code in HD-audio core to call the core allocator directly so that we get rid of dma_alloc_pages and dma_free_pages io_ops. If a driver needs the uncached pages, it has to set bus->dma_type right after the bus initialization. This is merely a code refactoring and shouldn't bring any behavior changes. Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-08ALSA: firewire: fix a memory leak bugWenwen Wang1-1/+1
In iso_packets_buffer_init(), 'b->packets' is allocated through kmalloc_array(). Then, the aligned packet size is checked. If it is larger than PAGE_SIZE, -EINVAL will be returned to indicate the error. However, the allocated 'b->packets' is not deallocated on this path, leading to a memory leak. To fix the above issue, free 'b->packets' before returning the error code. Fixes: 31ef9134eb52 ("ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver") Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: <stable@vger.kernel.org> # v2.6.39+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-08sound: fix a memory leak bugWenwen Wang1-1/+2
In sound_insert_unit(), the controlling structure 's' is allocated through kmalloc(). Then it is added to the sound driver list by invoking __sound_insert_unit(). Later on, if __register_chrdev() fails, 's' is removed from the list through __sound_remove_unit(). If 'index' is not less than 0, -EBUSY is returned to indicate the error. However, 's' is not deallocated on this execution path, leading to a memory leak bug. To fix the above issue, free 's' before -EBUSY is returned. Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-07ALSA: hda - Workaround for crackled sound on AMD controller (1022:1457)Takashi Iwai3-2/+70
A long-time problem on the recent AMD chip (X370, X470, B450, etc with PCI ID 1022:1457) with Realtek codecs is the crackled or distorted sound for capture streams, as well as occasional playback hiccups. After lengthy debugging sessions, the workarounds we've found are like the following: - Set up the proper driver caps for this controller, similar as the other AMD controller. - Correct the DMA position reporting with the fixed FIFO size, which is similar like as workaround used for VIA chip set. - Even after the position correction, PulseAudio still shows mysterious stalls of playback streams when a capture is triggered in timer-scheduled mode. Since we have no clear way to eliminate the stall, pass the BATCH PCM flag for PA to suppress the tsched mode as a temporary workaround. This patch implements the workarounds. For the driver caps, it defines a new preset, AXZ_DCAPS_PRESET_AMD_SB. It enables the FIFO- corrected position reporting (corresponding to the new position_fix=6) and enforces the SNDRV_PCM_INFO_BATCH flag. Note that the current implementation is merely a workaround. Hopefully we'll find a better alternative in future, especially about removing the BATCH flag hack again. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=195303 Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-07ALSA: hiface: fix multiple memory leak bugsWenwen Wang1-3/+8
In hiface_pcm_init(), 'rt' is firstly allocated through kzalloc(). Later on, hiface_pcm_init_urb() is invoked to initialize 'rt->out_urbs[i]'. In hiface_pcm_init_urb(), 'rt->out_urbs[i].buffer' is allocated through kzalloc(). However, if hiface_pcm_init_urb() fails, both 'rt' and 'rt->out_urbs[i].buffer' are not deallocated, leading to memory leak bugs. Also, 'rt->out_urbs[i].buffer' is not deallocated if snd_pcm_new() fails. To fix the above issues, free 'rt' and 'rt->out_urbs[i].buffer'. Fixes: a91c3fb2f842 ("Add M2Tech hiFace USB-SPDIF driver") Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-06ALSA: hda - Don't override global PCM hw info flagTakashi Iwai1-4/+2
The commit bfcba288b97f ("ALSA - hda: Add support for link audio time reporting") introduced the conditional PCM hw info setup, but it overwrites the global azx_pcm_hw object. This will cause a problem if any other HD-audio controller, as it'll inherit the same bit flag although another controller doesn't support that feature. Fix the bug by setting the PCM hw info flag locally. Fixes: bfcba288b97f ("ALSA - hda: Add support for link audio time reporting") Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-08-06ALSA: usb-audio: Add Pioneer DDJ-SX3 PCM quirckArd van Breemen1-0/+57
The Pioneer DDJ-SX3 is a plain 12 32bit channel out and 10 channel in PCM/midi controller. The PCM part is "vendor specific". It needs the "ignore invalid bsynchaddress" patch as it uses 0 for that. Signed-off-by: Ard van Breemen <ard@kwaak.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>