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2020-06-29ALSA: isa/wavefront: prevent out of bounds write in ioctlDan Carpenter
[ Upstream commit 7f0d5053c5a9d23fe5c2d337495a9d79038d267b ] The "header->number" comes from the ioctl and it needs to be clamped to prevent out of bounds writes. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20200501094011.GA960082@mwanda Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-20ALSA: es1688: Add the missed snd_card_free()Chuhong Yuan
commit d9b8fbf15d05350b36081eddafcf7b15aa1add50 upstream. snd_es968_pnp_detect() misses a snd_card_free() in a failed path. Add the missed function call to fix it. Fixes: a20971b201ac ("ALSA: Merge es1688 and es968 drivers") Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200603092459.1424093-1-hslester96@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-05ALSA: opti9xx: shut up gcc-10 range warningArnd Bergmann
commit 5ce00760a84848d008554c693ceb6286f4d9c509 upstream. gcc-10 points out a few instances of suspicious integer arithmetic leading to value truncation: sound/isa/opti9xx/opti92x-ad1848.c: In function 'snd_opti9xx_configure': sound/isa/opti9xx/opti92x-ad1848.c:322:43: error: overflow in conversion from 'int' to 'unsigned char' changes value from '(int)snd_opti9xx_read(chip, 3) & -256 | 240' to '240' [-Werror=overflow] 322 | (snd_opti9xx_read(chip, reg) & ~(mask)) | ((value) & (mask))) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ sound/isa/opti9xx/opti92x-ad1848.c:351:3: note: in expansion of macro 'snd_opti9xx_write_mask' 351 | snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff); | ^~~~~~~~~~~~~~~~~~~~~~ sound/isa/opti9xx/miro.c: In function 'snd_miro_configure': sound/isa/opti9xx/miro.c:873:40: error: overflow in conversion from 'int' to 'unsigned char' changes value from '(int)snd_miro_read(chip, 3) & -256 | 240' to '240' [-Werror=overflow] 873 | (snd_miro_read(chip, reg) & ~(mask)) | ((value) & (mask))) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ sound/isa/opti9xx/miro.c:1010:3: note: in expansion of macro 'snd_miro_write_mask' 1010 | snd_miro_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff); | ^~~~~~~~~~~~~~~~~~~ These are all harmless here as only the low 8 bit are passed down anyway. Change the macros to inline functions to make the code more readable and also avoid the warning. Strictly speaking those functions also need locking to make the read/write pair atomic, but it seems unlikely that anyone would still run into that issue. Fixes: 1841f613fd2e ("[ALSA] Add snd-miro driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200429190216.85919-1-arnd@arndb.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-12ALSA: cs4236: fix error return comparison of an unsigned integerColin Ian King
commit d60229d84846a8399257006af9c5444599f64361 upstream. The return from pnp_irq is an unsigned integer type resource_size_t and hence the error check for a positive non-error code is always going to be true. A check for a non-failure return from pnp_irq should in fact be for (resource_size_t)-1 rather than >= 0. Addresses-Coverity: ("Unsigned compared against 0") Fixes: a9824c868a2c ("[ALSA] Add CS4232 PnP BIOS support") Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20191122131354.58042-1-colin.king@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-27ALSA: sb8: add a check for request_regionKangjie Lu
[ Upstream commit dcd0feac9bab901d5739de51b3f69840851f8919 ] In case request_region fails, the fix returns an error code to avoid NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2018-12-21ALSA: isa/wavefront: prevent some out of bound writesDan Carpenter
[ Upstream commit 84d7a4470dbac0dd9389050100b54a1625d04264 ] "header->number" can be up to USHRT_MAX and it comes from the ioctl so it needs to be capped. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2018-12-13ALSA: wss: Fix invalid snd_free_pages() at error pathTakashi Iwai
commit 7b69154171b407844c273ab4c10b5f0ddcd6aa29 upstream. Some spurious calls of snd_free_pages() have been overlooked and remain in the error paths of wss driver code. Since runtime->dma_area is managed by the PCM core helper, we shouldn't release manually. Drop the superfluous calls. Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-26ALSA: msnd: Fix the default sample sizesTakashi Iwai
[ Upstream commit 7c500f9ea139d0c9b80fdea5a9c911db3166ea54 ] The default sample sizes set by msnd driver are bogus; it sets ALSA PCM format, not the actual bit width. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-13ALSA: msnd: Optimize / harden DSP and MIDI loopsTakashi Iwai
commit 20e2b791796bd68816fa115f12be5320de2b8021 upstream. The ISA msnd drivers have loops fetching the ring-buffer head, tail and size values inside the loops. Such codes are inefficient and fragile. This patch optimizes it, and also adds the sanity check to avoid the endless loops. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196131 Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196133 Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: grygorii tertychnyi <gtertych@cisco.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-17ALSA: Add missing dependency on CONFIG_SND_TIMERTakashi Iwai
commit 61595dca742a9ba9a4c998b9af1f468adc816275 upstream. Since the build of PCM timer may be disabled via Kconfig now, each driver that provides a timer interface needs to set CONFIG_SND_TIMER explicitly. Otherwise it may get a build error due to missing symbol. Fixes: 90bbaf66ee7b ('ALSA: timer: add config item to export PCM timer disabling for expert') Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12ALSA: gus: use swap() in snd_ics_put_double()Fabian Frederick
Use kernel.h macro definition. Thanks to Julia Lawall for Coccinelle scripting support. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-24sound: Deparenthesize negative error returnsJoe Perches
Make the returns a bit more kernel standard style. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-09Merge branch 'for-linus' into for-nextTakashi Iwai
Merging the HD-audio fixes back to base devel branch for further working on it.
2015-03-05ALSA: msnd: add some missing curly bracesDan Carpenter
There were some curly braces intended here. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-12ALSA: seq: Define driver object in each driverTakashi Iwai
This patch moves the driver object initialization and allocation to each driver's module init/exit code like other normal drivers. The snd_seq_driver struct is now published in seq_device.h, and each driver is responsible to define it with proper driver attributes (name, probe and remove) with snd_seq_driver specific attributes as id and argsize fields. The helper functions snd_seq_driver_register(), snd_seq_driver_unregister() and module_snd_seq_driver() are used for simplifying codes. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-28ALSA: Include linux/uaccess.h and linux/bitopts.h instead of asm/*Takashi Iwai
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-28ALSA: Include linux/io.h instead of asm/io.hTakashi Iwai
Nowadays it's recommended. Replace all in a shot. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-28ALSA: sscape: add missing include of linux/io.hArnd Bergmann
The soundscape driver uses the ISA inb/outb functions declared in linux/io.h, so it needs to include this header to avoid a build error: sscape.c: In function 'sscape_write_unsafe': sscape.c:203:2: error: implicit declaration of function 'outb' [-Werror=implicit-function-declaration] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-19ALSA: wavefront: Use setup_timer() and mod_timer()Takashi Iwai
No functional change, refactoring with the standard helpers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-19ALSA: sb: Use setup_timer() and mod_timer()Takashi Iwai
No functional change, refactoring with the standard helpers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-12ALSA: log emu8000 DRAM size at level INFODavid Flater
Detected sound font memory goes unreported unless the kernel was built with ALSA debugging enabled. Elevate that to a pr_info. Signed-off-by: David Flater <dave@flaterco.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-12ALSA: fix emu8000 DRAM sizing for AWE64 ValueDavid Flater
Applicable to any kernel since 2013: The special case added in commit 1338fc97d07a did not handle the possibility that the address space on an AWE64 Value would wrap around at 512 KiB. That is what it does, so the memory is still not detected on those cards. Fix that with a logic clean-up that eliminates the need for a special case. Signed-off-by: David Flater <dave@flaterco.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-04ALSA: Deletion of checks before the function call "iounmap"Markus Elfring
The iounmap() function performs also input parameter validation. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-04ALSA: sb: Delete an unnecessary check before the function call "snd_emux_free"Markus Elfring
The snd_emux_free() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02ALSA: wss: Remove (almost) always NULL parametersLars-Peter Clausen
Most callers of snd_wss_pcm(), snd_wss_timer() and snd_cs4236_pcm() pass NULL as the last parameter, some callers pass a pointer but never use it after the function has been called and only a few callers pass a pointer and actually use it. The later is only the case for snd_wss_pcm() for snd_cs4236_pcm() and it is possible to get the same PCM object by accessing the pcm field of the snd_wss struct that was passed as the first parameter. This function removes the last parameters from the functions mentioned above and updates the callers which used it to use chip->pcm instead. This allows us to slightly simplify the functions since they don't have to check and set the last parameter anymore which makes the code slightly shorter and cleaner. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02ASoC: sb16: Simplify snd_sb16dsp_pcm()Lars-Peter Clausen
All callers of snd_sb16dsp_pcm() always pass the pcm field of the first parameter as the last parameter. Simplify the function by moving this inside the function itself. This makes the code a bit shorter and cleaner. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02ALSA: sb8: Remove always NULL parametersLars-Peter Clausen
snd_sb8dsp_pcm() and snd_sb8dsp_midi() take a pointer to a pointer of a PCM/MIDI where if this parameter is provided the newly allocated object is stored. All callers pass NULL though, so remove the parameter. This makes the code a bit cleaner and shorter. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02ALSA: msnd: Remove always NULL parameterLars-Peter Clausen
snd_msnd_pcm() takes a pointer to a pointer of a PCM where if this parameter is provided the newly allocated PCM is stored. All callers pass NULL though, so remove the parameter. This makes the code a bit cleaner and shorter. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02ALSA: gus: Remove always NULL parametersLars-Peter Clausen
snd_gf1_pcm_new() and snd_gf1_rawmidi_new() take a pointer to a pointer of a PCM/MIDI where if this parameter is provided the newly allocated object is stored. All callers pass NULL though, so remove the parameter. This makes the code a bit cleaner and shorter. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02ALSA: es18xx: Remove always NULL parameterLars-Peter Clausen
snd_es18xx_pcm() takes a pointer to a pointer of a PCM where if this parameter is provided the newly allocated PCM is stored. All callers pass NULL though, so remove the parameter. This makes the code a bit cleaner and shorter. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02ALSA: es1688: Remove almost always NULL parameterLars-Peter Clausen
snd_es1688_pcm() takes a pointer to a pointer of a PCM where if this parameter is provided the newly allocated PCM is stored. This PCM is also available from the pcm field of the snd_es1688 struct that got passed to the same function. This patch updates all callers which passed a pointer to use that field instead and then removes the parameter from the function. This makes the code a bit shorter and cleaner. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02ALSA: ad1816a: Remove always NULL parametersLars-Peter Clausen
snd_ad1816a_pcm() and snd_ad1816a_timer() take a pointer to a pointer of a PCM/timer where if this parameter is provided the newly allocated object is stored. All callers pass NULL though, so remove the parameter. This makes the code a bit cleaner and shorter. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-26ALSA: gus: Remove unused gus_instr.cTakashi Iwai
The instrument layer codes have been dropped years ago, but this file was left intentionally with a slight hope for the new implementations. But, looking at the reality, the probability we'll have a new code for ISA GUS board is very low, and I won't bet it. So, rather clean this legacy stuff up. Developers can still refer to the old code via git history. Reported-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-21ALSA: sb: Deletion of unnecessary checks before two function callsMarkus Elfring
The functions release_and_free_resource() and snd_util_memhdr_free() test whether their argument is NULL and then return immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-21ALSA: es1688_lib: Deletion of an unnecessary check before the function call ↵Markus Elfring
"release_and_free_resource" The release_and_free_resource() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-04ALSA: es18xx: Add GPO controlsOndrej Zary
Add GPO0 and GPO1 (General Purpose Outputs) controls to mixer. These can be used on some cards to control amplifier mute (seen in ES1868 datasheet) or additional onboard chips such as QX2130 QXpander processor. These GPOs are present on ES1868, ES1869, ES1887 and ES1888 chips. Tested on ES1868 with QX2130. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-21ALSA: wss: Use snd_ctl_enum_info()Takashi Iwai
... and reduce the open codes. Also add missing const to text arrays. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-21ALSA: sb16: Use snd_ctl_enum_info()Takashi Iwai
... and reduce the open codes. Also add missing const to text arrays. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-21ALSA: msnd: Use snd_ctl_enum_info()Takashi Iwai
... and reduce the open codes. Also add missing const to the text array. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-21ALSA: es18xx: Use snd_ctl_enum_info()Takashi Iwai
... and reduce the open codes. Also add missing const to text arrays. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-21ALSA: es1688: Use snd_ctl_enum_info()Takashi Iwai
... and reduce the open codes. Also correct the array size and add missing const. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-21ALSA: ad1816a: Use snd_ctl_enum_info()Takashi Iwai
... and reduce the open codes. Also add missing const to the text array. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-05-30ALSA: gus: remove checks for CONFIG_SND_DEBUG_ROMPaul Bolle
Checks for CONFIG_SND_DEBUG_ROM were added in v2.5.5 but a Kconfig symbol SND_DEBUG_ROM was never added. These checks have always evaluated to false. Remove them and the printk()s they hide. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-05-14ALSA: sb_mixer: missing return statementDan Carpenter
The if condition here was supposed to return on error but the return statement is missing. The effect is that the ->mixername is set to "???" instead of "DT019X". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-04-14ALSA: es18xx driver should use udelay errorLi, Zhen-Hua
udelay with more than 20000 may cause __bad_udelay. Use mdelay for instead. [fixed a typo spotted by Clemens -- tiwai] Signed-off-by: Li, Zhen-Hua <zhen-hual@hp.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-04-07Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAPUwe Kleine-König
If the renamed symbol is defined lib/iomap.c implements ioport_map and ioport_unmap and currently (nearly) all platforms define the port accessor functions outb/inb and friend unconditionally. So HAS_IOPORT_MAP is the better name for this. Consequently NO_IOPORT is renamed to NO_IOPORT_MAP. The motivation for this change is to reintroduce a symbol HAS_IOPORT that signals if outb/int et al are available. I will address that at least one merge window later though to keep surprises to a minimum and catch new introductions of (HAS|NO)_IOPORT. The changes in this commit were done using: $ git grep -l -E '(NO|HAS)_IOPORT' | xargs perl -p -i -e 's/\b((?:CONFIG_)?(?:NO|HAS)_IOPORT)\b/$1_MAP/' Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-12ALSA: isa: Convert to snd_card_new() with a device pointerTakashi Iwai
Also remove superfluous snd_card_set_dev() calls. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-11-13ALSA: isa: not allocating enough spaceDan Carpenter
We allocate only 4 bytes here "sizeof(int)" instead of WF_MSAMPLE_BYTES (259) which was intended. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-11-12ALSA: msnd: Avoid duplicated driver nameTakashi Iwai
msnd_pinnacle.c is used for both snd-msnd-pinnacle and snd-msnd-classic drivers, and both should have different driver names. Using the same driver name results in the sysfs warning for duplicated entries like kobject: 'msnd-pinnacle.7' (cec33408): kobject_release, parent (null) (delayed) kobject: 'msnd-pinnacle' (cecd4980): kobject_release, parent cf3ad9b0 (delayed) ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:486 sysfs_warn_dup+0x7d/0xa0() sysfs: cannot create duplicate filename '/bus/isa/drivers/msnd-pinnacle' ...... Reported-by: Fengguang Wu <fengguang.wu@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-11-07ALSA: sb16 - info leak in snd_sb_csp_ioctl()Dan Carpenter
There is a 2 byte hole after "info.func_nr" so we could leak unitialized stack information to userspace. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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