kernel.git/sound/usb, branch linux-2.6.33.y

ALSA: snd_usb_caiaq: track submitted output urbs

2011-08-29T21:32:58Z

commit da6094ea7d3c2295473d8f5134279307255d6ebf upstream. The snd_usb_caiaq driver currently assumes that output urbs are serviced in time and doesn't track when and whether they are given back by the USB core. That usually works fine, but due to temporary limitations of the XHCI stack, we faced that urbs were submitted more than once with this approach. As it's no good practice to fire and forget urbs anyway, this patch introduces a proper bit mask to track which requests have been submitted and given back. That alone however doesn't make the driver work in case the host controller is broken and doesn't give back urbs at all, and the output stream will stop once all pre-allocated output urbs are consumed. But it does prevent crashes of the controller stack in such cases. See http://bugzilla.kernel.org/show_bug.cgi?id=40702 for more details. Signed-off-by: Daniel Mack Reported-and-tested-by: Matej Laitl Cc: Sarah Sharp Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: snd-usb-caiaq: Correct offset fields of outbound iso_frame_desc

2011-08-29T21:32:55Z

commit 15439bde3af7ff88459ea2b5520b77312e958df2 upstream. This fixes faulty outbount packets in case the inbound packets received from the hardware are fragmented and contain bogus input iso frames. The bug has been there for ages, but for some strange reasons, it was only triggered by newer machines in 64bit mode. Signed-off-by: Daniel Mack Reported-and-tested-by: William Light Reported-by: Pedro Ribeiro Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: snd-usb-caiaq: Fix keymap for RigKontrol3

2011-08-16T02:01:55Z

commit f4389489b5cbe60b3441869c68bb4afe760969c4 upstream. Signed-off-by: Daniel Mack Reported-by: Renato Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: snd-usb-us122l: Fix missing NULL checks

2011-03-21T19:45:40Z

commit cdce2db74e156fbd9a2dc3c7b246166f8b70955b upstream. Fix missing NULL checks in usb_stream_hwdep_poll() and usb_stream_hwdep_ioctl(). Wake up poll waiters before returning from usb_stream_hwdep_ioctl(). Signed-off-by: Karsten Wiese Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: caiaq - Fix possible string-buffer overflow

2011-03-21T19:45:11Z

commit eaae55dac6b64c0616046436b294e69fc5311581 upstream. Use strlcpy() to assure not to overflow the string array sizes by too long USB device name string. Reported-by: Rafa Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: usb - Fix Oops after usb-midi disconnection

2010-04-26T14:47:54Z

commit 29aac005ff4dc8a5f50b80f4e5c4f59b21c0fb50 upstream. usb-midi causes sometimes Oops at snd_usbmidi_output_drain() after disconnection. This is due to the access to the endpoints which have been already released at disconnection while the files are still alive. This patch fixes the problem by checking disconnection state at snd_usbmidi_output_drain() and by releasing urbs but keeping the endpoint instances until really all freed. Tested-by: Tvrtko Ursulin Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: USB MIDI support for Access Music VirusTI

2010-03-15T16:06:21Z

commit d39e82db73eb876c60d00f00219d767b3be30307 upstream. Here's a patch that adds MIDI support through USB for one of the Access Music synths, the VirusTI. The synth uses standard USBMIDI protocol on its USB interface 3, although it does signal "vendor specific" class. A magic string has to be sent on interface 3 to enable the sending of MIDI from the synth (this string was found by sniffing usb communication of the Windows driver). This is all my patch does, and it works on my computer. Please note that the synth can also do standard usb audio I/O on its interfaces 2&3, which already works with the current snd-usb-audio driver, except for the audio input from the synth. I'm going to work on it when I have some time. Signed-off-by: Sebastien Alaiwan Signed-off-by: Clemens Ladisch Signed-off-by: Jaroslav Kysela Signed-off-by: Greg Kroah-Hartman

ALSA: usb-audio: reduce MIDI packet size to work around broken firmware

2010-03-15T16:06:20Z

commit f167e1d073278fe231bbdd5d6c24fb9d091aa544 upstream. Extend the list of devices whose firmware does not expect more than one USB MIDI packet in one USB packet. bug report: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3752 Signed-off-by: Clemens Ladisch Signed-off-by: Jaroslav Kysela Signed-off-by: Greg Kroah-Hartman

ALSA: usb-audio - Avoid Oops after disconnect

2009-12-28T11:24:22Z

As the release of substreams may be done asynchronously from the disconnection, close callback needs to check the shutdown flag before actually accessing the usb interface. Reference: Novell bnc#505027 http://bugzilla.novell.com/show_bug.cgi?id=565027 Signed-off-by: Takashi Iwai

sound: sgio2audio/pdaudiocf/usb-audio: initialize PCM buffer

2009-12-18T11:53:17Z

When allocating the PCM buffer, use vmalloc_user() instead of vmalloc(). Otherwise, it would be possible for applications to play the previous contents of the kernel memory to the speakers, or to read it directly if the buffer is exported to userspace. Signed-off-by: Clemens Ladisch Cc: Signed-off-by: Takashi Iwai