The bug is here:
err = snd_card_cs423x_pnp(dev, card->private_data, pdev, cdev);
The list iterator value 'cdev' will *always* be set and non-NULL
by list_for_each_entry(), so it is incorrect to assume that the
iterator value will be NULL if the list is empty or no element
is found.
To fix the bug, use a new variable 'iter' as the list iterator,
while use the original variable 'cdev' as a dedicated pointer
to point to the found element. And snd_card_cs423x_pnp() itself
has NULL check for cdev.
Cc: stable@vger.kernel.org
Fixes: c2b73d1458 ("ALSA: cs4236: cs4232 and cs4236 driver merge to solve PnP BIOS detection")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Link: https://lore.kernel.org/r/20220327060822.4735-1-xiam0nd.tong@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When snd_gf1_mem_xalloc() returns NULL, the current code still leaves
the formerly allocated block.name string but returns an error
immediately. This patch does code-refactoring to move the kstrdup()
call itself into snd_gf1_mem_xalloc() and deals with the resource free
in the helper code by itself for fixing those memory leaks.
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20211213132444.22385-2-tiwai@suse.de
Link: https://lore.kernel.org/r/20211213141512.27359-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
snd_gf1_mem_xalloc() returns NULL incorrectly when the memory chunk is
allocated in the middle of the chain. This patch corrects the return
value to treat it properly.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20211213132444.22385-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
kstrdup() returns NULL when some internal memory errors happen, it is
better to check the return value of it. Otherwise, we may not to be able
to catch some memory errors in time.
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Link: https://lore.kernel.org/r/tencent_1E3950293AC22395ACFE99404C985D738309@qq.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The pointer block return from snd_gf1_dma_next_block could be
null, so there is a potential null pointer dereference issue.
Fix this by adding a null check before dereference.
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Link: https://lore.kernel.org/r/20211024104611.9919-1-cyeaa@connect.ust.hk
Signed-off-by: Takashi Iwai <tiwai@suse.de>
On m68k, compiling drivers under SND_ISA causes build errors:
../sound/core/isadma.c: In function 'snd_dma_program':
../sound/core/isadma.c:33:17: error: implicit declaration of function 'claim_dma_lock' [-Werror=implicit-function-declaration]
33 | flags = claim_dma_lock();
| ^~~~~~~~~~~~~~
../sound/core/isadma.c:41:9: error: implicit declaration of function 'release_dma_lock' [-Werror=implicit-function-declaration]
41 | release_dma_lock(flags);
| ^~~~~~~~~~~~~~~~
../sound/isa/sb/sb16_main.c: In function 'snd_sb16_playback_prepare':
../sound/isa/sb/sb16_main.c:253:72: error: 'DMA_AUTOINIT' undeclared (first use in this function)
253 | snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
| ^~~~~~~~~~~~
../sound/isa/sb/sb16_main.c:253:72: note: each undeclared identifier is reported only once for each function it appears in
../sound/isa/sb/sb16_main.c: In function 'snd_sb16_capture_prepare':
../sound/isa/sb/sb16_main.c:322:71: error: 'DMA_AUTOINIT' undeclared (first use in this function)
322 | snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
| ^~~~~~~~~~~~
and more...
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20211016062602.3588-1-rdunlap@infradead.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The legacy ISA probe tries to probe the card repeatedly, and this
would conflict with the refactoring using devres. Put the card
creation out of the loop and only probe GUS object repeatedly.
Fixes: 5b88da3c80 ("ALSA: gus: Allocate resources with device-managed APIs")
Link: https://lore.kernel.org/r/20210907093930.29009-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
GUS card object may be repeatedly probed for the legacy ISA devices,
and the behavior doesn't fit with the devres resource management.
Revert partially back to the classical way for the snd_gus_card
object, so that the repeated calls of snd_gus_create() are allowed.
Fixes: 5b88da3c80 ("ALSA: gus: Allocate resources with device-managed APIs")
Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/r/20210907093930.29009-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The old ISA MSND driver basically maps the iomem as the DMA buffer.
For this type of buffer, we have already the standard mmap helper,
snd_pcm_lib_mmap_iomem(). Correct the PCM info, set the DMA address
and use the standard helper for handling the mmap on all architectures
properly.
Link: https://lore.kernel.org/r/20210809140532.11006-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The recent refactoring of es1688 object creation with the use of
devres caused a problem with the non-PnP probe of GUS driver, as it
tries to probe multiple times with different parameters That is, this
object needs the immediate resource release and the devres doesn't fit
for it.
This patch reverts partially the commit for restoring the classic
resource management for es1688 object.
Fixes: 1bb11c1c7f ("ALSA: es1688: Allocate resources with device-managed APIs")
Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/r/20210805032513.GA30485@xsang-OptiPlex-9020
Link: https://lore.kernel.org/r/20210805062148.30951-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sc6000 driver tries to allocate an extra pointer for keeping the vport
address and point it over card->private_data. But, this indirect
access is utterly superfluous, and we can keep the vport address
directly in card->private_data instead. This will simply the code and
avoid confusion.
Link: https://lore.kernel.org/r/20210720162837.6026-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Static analysis is warning that the sizeof being used is should be
of *vport and not vport. Although these are the same size it is not
a portable assumption to assume this is true for all cases. Fix this
by using sizeof(*vport).
Addresses-Coverity: ("Sizeof not portable")
Fixes: 111601ff76 ("ALSA: sc6000: Allocate resources with device-managed APIs")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210720161707.74197-1-colin.king@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Currently the { } braces are missing around an if block causing subsequent
code after the return to become unreachable. Fix this by adding the
missing { }.
Addresses-Coverity: ("Structurally dead code")
Fixes: 2973ee4a5b ("ALSA: opti9xx: Allocate resources with device-managed APIs")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210720153741.73230-1-colin.king@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA wavefront driver
with devres as a clean up. Each manual resource management is
converted with the corresponding devres helper. The remove callback
became superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-72-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA sscape driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-71-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA als100 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The cleanup code was moved from
the remove callback to card->private_free, and then the remove
callback became superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-70-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA opl3sa2 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-69-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA als100 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-68-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA msnd drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-67-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA gus drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-66-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA galaxy drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-65-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA es18xx driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-64-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA es1688 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-63-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA cs423x drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-62-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA cmi8330 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-61-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA cmi8328 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-60-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA azt2320 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-59-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA als100 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-58-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA adlib driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-57-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA ad1848 driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. The remove callback became
superfluous and dropped.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-56-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA sb drivers with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper, and the card object release is
managed now via card->private_free instead of a lowlevel snd_device.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-55-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA wss driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper. Since the whole destructor code
could be removed by the conversion, the lowlevel snd_device was
dropped as well.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-54-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch converts the resource management in ISA ad1816a driver with
devres as a clean up. Each manual resource management is converted
with the corresponding devres helper, and the card object release is
managed now via card->private_free instead of a lowlevel snd_device.
This should give no user-visible functional changes.
Link: https://lore.kernel.org/r/20210715075941.23332-53-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
SB16 CSP driver may hit potentially a typical ABBA deadlock in two
code paths:
In snd_sb_csp_stop():
spin_lock_irqsave(&p->chip->mixer_lock, flags);
spin_lock(&p->chip->reg_lock);
In snd_sb_csp_load():
spin_lock_irqsave(&p->chip->reg_lock, flags);
spin_lock(&p->chip->mixer_lock);
Also the similar pattern is seen in snd_sb_csp_start().
Although the practical impact is very small (those states aren't
triggered in the same running state and this happens only on a real
hardware, decades old ISA sound boards -- which must be very difficult
to find nowadays), it's a real scenario and has to be fixed.
This patch addresses those deadlocks by splitting the locks in
snd_sb_csp_start() and snd_sb_csp_stop() for avoiding the nested
locks.
Reported-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/7b0fcdaf-cd4f-4728-2eae-48c151a92e10@gmail.com
Link: https://lore.kernel.org/r/20210716132723.13216-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When 'SB_HW_16' check fails, the error code -ENODEV instead of 0 should be
returned, which is the same as that returned when 'WSS_HW_CMI8330' check
fails.
Fixes: 43bcd973d6 ("[ALSA] Add snd_card_set_generic_dev() call to ISA drivers")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20210707074051.2663-1-thunder.leizhen@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A final batch of fixes for v5.13, this is larger than I'd like due to
the fixes for a series of suspend issues that Intel turned up in their
testing this week.
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Merge tag 'asoc-fix-v5.13-rc7' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Fixes for v5.13
A final batch of fixes for v5.13, this is larger than I'd like due to
the fixes for a series of suspend issues that Intel turned up in their
testing this week.
ISA ES1688 and WSS driver code contains a few assignments in if
condition, which is a bad coding style that may confuse readers and
occasionally lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-15-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA AZT2320 driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-14-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA ALS100 driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-13-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA CMI8330 driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-12-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA ES18xx driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-11-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA OPL3SA2 driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA Opti9xx driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA CS423x driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA WaveFront driver code contains lots of assignments in if
condition, which is a bad coding style that may confuse readers and
occasionally lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA AD1816A driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ISA GUS driver code contains lots of assignments in if condition,
which is a bad coding style that may confuse readers and occasionally
lead to bugs.
This patch is merely for coding-style fixes, no functional changes.
Link: https://lore.kernel.org/r/20210608140540.17885-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
snd_sb_qsound_destroy() contains the calls of removing the previously
created mixer controls, but it doesn't clear the pointers. As
snd_sb_qsound_destroy() itself may be repeatedly called via ioctl,
this could lead to double-free potentially.
Fix it by clearing the struct fields properly afterwards.
Link: https://lore.kernel.org/r/20210608140540.17885-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
