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* vm audit: add VM_DONTEXPAND to mmap for drivers that need itNick Piggin2008-02-04
| | | | | | | | | | | | Drivers that register a ->fault handler, but do not range-check the offset argument, must set VM_DONTEXPAND in the vm_flags in order to prevent an expanding mremap from overflowing the resource. I've audited the tree and attempted to fix these problems (usually by adding VM_DONTEXPAND where it is not obvious). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ALSA] Remove sound/driver.hTakashi Iwai2008-01-31
| | | | | | | | | | | | 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>
* [ALSA] alsa: usx2y nopageNick Piggin2008-01-31
| | | | | | | | Convert alsa usx2y driver from nopage to fault. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] usbusx2yaudio: kfree(NULL) is validRichard Knutsson2007-07-20
| | | | | | | | if (!x) kfree(x); is not needed since kfree(NULL) is valid. Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] Repair snd-usb-usx2y over OHCIKarsten Wiese2007-01-23
| | | | | | | | | | | | | The previous patch 'Repair snd-usb-usx2y for usb 2.6.18' assumed urb->start_frame roll over beyond MAX_INT for both UHCI & OHCI. This isn't true until now (kernel 2.6.20). Fix this by only looking at the common between OHCI & UHCI Frame number range. This is for mainline and stable kernels >= 2.6.18. Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [PATCH] mm: incorrect VM_FAULT_OOM returns from driversNick Piggin2006-12-07
| | | | | | | | | | | | | Some drivers are returning OOM when it is not in response to a memory shortage. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Dave Airlie <airlied@linux.ie> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] Repair snd-usb-usx2y for usb 2.6.18Karsten Wiese2006-10-06
| | | | | | | | | urb->start_frame rolls over beyond MAX_INT now. This is for stable kernel and stable alsa. Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] Fix bug in snd-usb-usx2y's usX2Y_pcms_lock_check()Karsten Wiese2006-10-06
| | | | | | | | | | | Fix bug in snd-usb-usx2y's usX2Y_pcms_lock_check() substream can be NULL...... in mainline, bug was introduced by: 2006-06-22 [ALSA] Add O_APPEND flag support to PCM Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* [ALSA] Add O_APPEND flag support to PCMTakashi Iwai2006-06-22
| | | | | | | | Added O_APPEND flag support to PCM to enable shared substreams among multiple processes. This mechanism is used by dmix and dsnoop plugins. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [PATCH] Typo fixesAlexey Dobriyan2006-03-28
| | | | | | | | Fix a lot of typos. Eyeballed by jmc@ in OpenBSD. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] semaphore -> mutex (Archs, misc buses)Ingo Molnar2006-03-22
| | | | | | | | | | | 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>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsaLinus Torvalds2006-01-04
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| * [ALSA] Remove xxx_t typedefs: USB-USX2YTakashi Iwai2006-01-03
| | | | | | | | | | | | | | | | Modules: USB USX2Y Remove xxx_t typedefs from the USB-USX2Y driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] usx2y - Code clean upTakashi Iwai2006-01-03
| | | | | | | | | | | | | | | | | | | | | | | | | | Modules: USB USX2Y Clean up snd-usb-usx2y driver code: - Avoid unnecessary cast - Fix spaces/indents - Use kzalloc() - Remove weird debug prints Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [ALSA] Remove superfluous pcm_free callbacksTakashi Iwai2006-01-03
| | | | | | | | | | | | Remove superflous pcm_free callbacks. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | [PATCH] USB: remove .owner field from struct usb_driverGreg Kroah-Hartman2006-01-04
|/ | | | | | It is no longer needed, so let's remove it, saving a bit of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] unpaged: sound nopage get_pageHugh Dickins2005-11-22
| | | | | | | | | | | | | | | | | | Something noticed when studying use of VM_RESERVED in different drivers: snd_usX2Y_hwdep_pcm_vm_nopage omitted to get_page: fixed. And how did this work before? Aargh! That nopage is returning a page from within a buffer allocated by snd_malloc_pages, which allocates a high-order page, then does SetPageReserved on each 0-order page within. That would have worked in 2.6.14, because when the area was unmapped, PageReserved inhibited put_page. 2.6.15-rc1 removed that inhibition (while leaving ineffective PageReserveds around for now), but it hasn't caused trouble because.. we've not been freeing from VM_RESERVED at all. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] Add missing KERN_* prefixTakashi Iwai2005-11-04
| | | | | | | | Modules: ALSA<-OSS emulation,USB generic driver,USB USX2Y Added missing KERN_* prefix to printk. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Replace with kzalloc() - othersTakashi Iwai2005-09-12
| | | | | | | | | | | 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] ALSA's struct _snd_pcm_substream: Obsolete open_flagKarsten Wiese2005-08-30
| | | | | | | | | | PCM Midlevel,ALSA<-OSS emulation,USB USX2Y This patch removes open_flag from struct _snd_pcm_substream. All of its uses are substituted by querying struct _snd_pcm_substream's member ffile instead. Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Fix-up sleeping in sound/usbNishanth Aravamudan2005-07-28
| | | | | | | | | | | | USB generic driver,USB USX2Y Description: Fix-up sleeping in sound/usb. Replace big_mdelay() with msleep() to guarantee the task delays as expected. This also involved replacing/removing custom sleep functions. Patch is compile-tested. Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] Remove redundant NULL checks before kfreeJesper Juhl2005-06-22
| | | | | | | | | | | | | | | | 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>
* [ALSA] usb-audio - remove superfluous parameterClemens Ladisch2005-05-29
| | | | | | | | USB generic driver,USB USX2Y This patch removes the superfluous driver parameter from the disconnect functions. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] prevent oops & dead keyboard on usb unplugging while the device is ↵Karsten Wiese2005-05-29
| | | | | | | | | | | | | | | being used USB generic driver,USB USX2Y Without this patch, some usb kobjects, which are parents to the usx2y's kobjects can be freed before the usx2y's. This led to an oops in get_kobj_path_length() and a dead keyboard, when the usx2y's kobjects were freed. The patch ensures the correct sequence. Tested ok on kernel 2.6.12-rc2. Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
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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