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* ALSA: emux: Fix mutex deadlock in OSS emulationTakashi Iwai2015-04-282-16/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | The OSS emulation in synth-emux helper has a potential AB/BA deadlock at the simultaneous closing and opening: close -> snd_seq_release() -> sne_seq_free_client() -> snd_seq_delete_all_ports(): takes client->ports_mutex -> port_delete() -> snd_emux_unuse(): takes emux->register_mutex open -> snd_seq_oss_open() -> snd_emux_open_seq_oss(): takes emux->register_mutex -> snd_seq_event_port_attach() -> snd_seq_create_port(): takes client->ports_mutex This patch addresses the deadlock by reducing the rance taking emux->register_mutex in snd_emux_open_seq_oss(). The lock is needed for the refcount handling, so move it locally. The calls in emux_seq.c are already with the mutex, thus they are replaced with the version without mutex lock/unlock. Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: emux: Fix mutex deadlock at unloadingTakashi Iwai2015-04-271-2/+0
| | | | | | | | | | | | | | | | | | | | | | The emux-synth driver has a possible AB/BA mutex deadlock at unloading the emu10k1 driver: snd_emux_free() -> snd_emux_detach_seq(): mutex_lock(&emu->register_mutex) -> snd_seq_delete_kernel_client() -> snd_seq_free_client(): mutex_lock(&register_mutex) snd_seq_release() -> snd_seq_free_client(): mutex_lock(&register_mutex) -> snd_seq_delete_all_ports() -> snd_emux_unuse(): mutex_lock(&emu->register_mutex) Basically snd_emux_detach_seq() doesn't need a protection of emu->register_mutex as it's already being unregistered. So, we can get rid of this for avoiding the deadlock. Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: Include linux/uaccess.h and linux/bitopts.h instead of asm/*Takashi Iwai2015-01-283-3/+3
| | | | Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: emux: Use setup_timer() and mod_timer()Takashi Iwai2015-01-192-7/+3
| | | | | | No functional change, refactoring with the standard helpers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: emux: Delete an unnecessary check before the function call "snd_sf_free"Markus Elfring2015-01-041-5/+1
| | | | | | | | | | The snd_sf_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>
* ALSA: synth: emux: soundfont.c: Cleaning up memory leakRickard Strandqvist2014-06-011-0/+1
| | | | | | | | | | | | There is a risk for memory leak in when something unexpected happens and the function returns. This was largely found by using a static code analysis program called cppcheck. [fixed a typo of kfree() by tiwai] Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* sound: Add export.h for THIS_MODULE/EXPORT_SYMBOL where neededPaul Gortmaker2011-10-313-0/+3
| | | | | | | | These aren't modules, but they do make use of these macros, so they will need export.h to get that definition. Previously, they got it via the implicit module.h inclusion. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* sound: Add module.h to the previously silent sound usersPaul Gortmaker2011-10-313-1/+3
| | | | | | | | Lots of sound drivers were getting module.h via the implicit presence of it in <linux/device.h> but we are going to clean that up. So fix up those users now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* ALSA: emux: Add trivial compat ioctl handlerBen Hutchings2010-09-141-0/+3
| | | | | | Reported-by: Carmen Cru <carmen.cru@belgacom.net> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* tree-wide: fix typos "couter" -> "counter"Uwe Kleine-König2009-12-041-1/+1
| | | | | | | | | This patch was generated by git grep -E -i -l 'couter' | xargs -r perl -p -i -e 's/couter/counter/' Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* ALSA: clean up the logic for building sequencer modulesMichal Marek2009-05-292-20/+4
| | | | | | | | Instead of mangling the CONFIG_* variables in the makefiles over and over, set a few helper variables in Kconfig. Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Merge branch 'topic/misc' into for-linusTakashi Iwai2009-03-244-22/+30
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| * ALSA: emux - Add missing KERN_* prefix to printkTakashi Iwai2009-02-054-22/+30
| | | | | | | | Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: Remove superfluous hwdep opsTakashi Iwai2009-02-051-21/+0
|/ | | | | | Remove NOP hwdep ops in sound drivers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: Kill snd_assert() in other placesTakashi Iwai2008-08-136-52/+78
| | | | | | | | Kill snd_assert() in other places, either removed or replaced with if () with snd_BUG_ON(). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] emux midi synthesizer doesn't honor SOFT_PEDAL-release eventmaximilian attems2008-05-131-1/+5
| | | | | | | | | | | | | | | | | | | When the hardware wavetable synthesizer of an Creative SB Audigy or SB Live! card (with emu10k chip) receives the MIDI SOFT_PEADAL-press event (?? 67 127) the appropriate voice is attenuted. Unfortunately when the pedal is released (event ?? 67 0) the voice does not get it's original volume again. Boolean MIDI controls should interpret 0..63 as false and 64..127 as true. Thanks to Clemens Ladisch for review and correction. Original patch from "Uwe Kraeger" <uwe_debbug@arcor.de> Submitted to http://bugs.debian.org/474312 Signed-off-by: maximilian attems <max@stro.at> Cc: uwe_debbug@arcor.de Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove sound/driver.hTakashi Iwai2008-01-317-7/+0
| | | | | | | | | | | | 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: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* Fix misspellings of "system", "controller", "interrupt" and "necessary".Robert P. J. Day2007-10-191-1/+1
| | | | | | | | Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
* [ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.czJaroslav Kysela2007-10-162-2/+2
| | | | Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] sound/synth/util_mem.c: remove pointless checkAdrian Bunk2007-10-161-1/+1
| | | | | | | | | The Coverity checker spotted that if anyone would call this function with 'prev == NULL', he would still get an Oops a few lines below. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [PATCH] remove many unneeded #includes of sched.hTim Schmielau2007-02-142-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ALSA] Fix disconnection of proc interfaceTakashi Iwai2006-09-231-4/+2
| | | | | | | | | | - 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: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] NULL pointer dereference in sound/synth/emux/soundfont.cEric Sesterhenn2006-06-221-1/+1
| | | | | | | | | | this is about coverity id #100. It seems the if statement is negated, since the else branch calls remove_info() with sflist->currsf as a parameter where it gets dereferenced. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] add more sequencer port type information bitsClemens Ladisch2006-06-221-1/+3
| | | | | | | | Add four new information flags SNDRV_SEQ_PORT_TYPE_HARDWARE, _SOFTWARE, _SYNTHESIZER, _PORT for sequencer ports. This makes it easier for apps like Rosegarden to make policy decisions based on the port type. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] fix port type bitsClemens Ladisch2006-06-221-2/+1
| | | | | | | Fix the port information about non-MIDI messages that had wrong values for some OPL3 and EmuX ports. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] Remove unneeded read/write_size fields in proc text opsTakashi Iwai2006-06-221-1/+0
| | | | | | | Remove unneeded read/write_size fields in proc text ops. snd_info_set_text_ops() is fixed, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] emux - Move EXPORT_SYMBOL() to adjacent to each functionTakashi Iwai2006-06-223-11/+10
| | | | | | Move EXPORT_SYMBOL() to adjacent to each exported function/variable. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] semaphore -> mutex (driver part)Ingo Molnar2006-03-226-27/+28
| | | | | | | | | | | Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] seq: set client name in snd_seq_create_kernel_client()Clemens Ladisch2006-01-031-27/+2
| | | | | | | | | All users of snd_seq_create_kernel_client() have to set the client name anyway, so we can just pass the name as parameter. This relieves us from having to muck around with a struct snd_seq_client_info in these cases. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] seq: remove struct snd_seq_client_callbackClemens Ladisch2006-01-031-7/+1
| | | | | | | The fields of struct snd_seq_client_callback either aren't used or are always set to the same value, so we can get rid of it altogether. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] Fix possible races in timer callbacksTakashi Iwai2006-01-031-2/+3
| | | | | | Fix possible races in timer callbacks. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove xxx_t typedefs: Emu-X synthTakashi Iwai2006-01-0311-370/+427
| | | | | | | | Modules: Common EMU synth,SoundFont,Synth Remove xxx_t typedefs from the Emu-X synth support. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] emux - Avoid cast of function pointersTakashi Iwai2006-01-031-3/+29
| | | | | | | | | Modules: Common EMU synth Pass the proper functions instead of cast of function pointers, which can be dangerous with compiler optimizations. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Fix emu10k1 synth problems.Tim2005-11-041-1/+0
| | | | | | | | | | Modules: EMU10K1/EMU10K2 driver,Common EMU synth This patch fixes problems with voices cutting off or not sounding at all. Signed-off-by: Tim <tedon@rogers.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Replace with kzalloc() - othersTakashi Iwai2005-09-124-7/+7
| | | | | | | | | | | Documentation,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,OPL3 OPL4,Digigram VX core,I2C cs8427,I2C lib core,I2C tea6330t,L3 drivers AK4114 receiver,AK4117 receiver,PDAudioCF driver,PPC PMAC driver SPARC AMD7930 driver,SPARC cs4231 driver,Synth,Common EMU synth USB generic driver,USB USX2Y Replace kcalloc(1,..) with kzalloc(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Fix missing spin_unlockTakashi Iwai2005-08-301-1/+0
| | | | | | | au88x0 driver,Common EMU synth Fixed missing spin_unlock. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [PATCH] create a kstrdup library functionPaulo Marques2005-06-231-1/+2
| | | | | | | | | | | | | | | | This patch creates a new kstrdup library function and changes the "local" implementations in several places to use this function. Most of the changes come from the sound and net subsystems. The sound part had already been acknowledged by Takashi Iwai and the net part by David S. Miller. I left UML alone for now because I would need more time to read the code carefully before making changes there. Signed-off-by: Paulo Marques <pmarques@grupopie.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] Remove redundant NULL checks before kfreeJesper Juhl2005-06-221-4/+2
| | | | | | | | | | | | | | | | Timer Midlevel,ALSA sequencer,ALSA<-OSS sequencer,Digigram VX core I2C tea6330t,GUS Library,VIA82xx driver,VIA82xx-modem driver CA0106 driver,CS46xx driver,EMU10K1/EMU10K2 driver,YMFPCI driver Digigram VX Pocket driver,Common EMU synth,USB generic driver,USB USX2Y Checking a pointer for NULL before calling kfree() on it is redundant, kfree() deals with NULL pointers just fine. This patch removes such checks from sound/ This patch also makes another, but closely related, change. It avoids casting pointers about to be kfree()'ed. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-1613-0/+4867
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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