diff options
| author |   Damien Zammit <damien@zamaudio.com> | 2013-01-04 09:51:44 +0100 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2013-01-04 09:53:17 +0100 |
| commit | b7b435e81b7228af68b5d3bef277fce10100b369 (patch) | |
| tree | 07f7e0d1d4fea7403c39a4c3e3e5f7e1bea76f55 /sound/usb | |
| parent | ALSA: usb-audio: Add support for Creative BT-D1 via usb sound quirks (diff) | |
| download | linux-dev-b7b435e81b7228af68b5d3bef277fce10100b369.tar.xz linux-dev-b7b435e81b7228af68b5d3bef277fce10100b369.zip | |
ALSA: usb-audio: Fix kernel panic of Digidesign Mbox2 quirk
This patch is based on 3.8-rc1. It fixes two things:
1) A kernel panic caused by incorrect allocation of a u8 variable
"bootresponse".
2) A noisy dmesg (urb status -32) caused by broken pipe to an
invalid midi endpoint.
It is also a little cleaner because there is no need for a new
QUIRK_MIDI type as suggested by kernel developers, since the device
follows exactly the MIDIMAN protocol.
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/midi.c | 4 | ||||
| -rw-r--r-- | sound/usb/quirks-table.h | 2 | ||||
| -rw-r--r-- | sound/usb/quirks.c | 16 | ||||
| -rw-r--r-- | sound/usb/usbaudio.h | 1 |
4 files changed, 8 insertions, 15 deletions
diff --git a/sound/usb/midi.c b/sound/usb/midi.c index c183d34842ac..34b9bb7fe87c 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -2181,10 +2181,6 @@ int snd_usbmidi_create(struct snd_card *card, umidi->usb_protocol_ops = &snd_usbmidi_novation_ops; err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); break; - case QUIRK_MIDI_MBOX2: - umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops; - err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); - break; case QUIRK_MIDI_RAW_BYTES: umidi->usb_protocol_ops = &snd_usbmidi_raw_ops; /* diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index 5388ca3a4ab0..78e845ec65da 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -3015,7 +3015,7 @@ YAMAHA_DEVICE(0x7010, "UB99"), }, { .ifnum = 6, - .type = QUIRK_MIDI_MBOX2, + .type = QUIRK_MIDI_MIDIMAN, .data = &(const struct snd_usb_midi_endpoint_info) { .out_ep = 0x02, .out_cables = 0x0001, diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index f104c68fe1e0..acc12f004c23 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -306,7 +306,6 @@ int snd_usb_create_quirk(struct snd_usb_audio *chip, [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk, [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk, [QUIRK_MIDI_NOVATION] = create_any_midi_quirk, - [QUIRK_MIDI_MBOX2] = create_any_midi_quirk, [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk, [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk, [QUIRK_MIDI_CME] = create_any_midi_quirk, @@ -528,11 +527,11 @@ static void mbox2_setup_48_24_magic(struct usb_device *dev) #define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */ #define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */ -int snd_usb_mbox2_boot_quirk(struct usb_device *dev) +static int snd_usb_mbox2_boot_quirk(struct usb_device *dev) { struct usb_host_config *config = dev->actconfig; int err; - u8 bootresponse; + u8 bootresponse[12]; int fwsize; int count; @@ -546,20 +545,20 @@ int snd_usb_mbox2_boot_quirk(struct usb_device *dev) snd_printd("usb-audio: Sending Digidesign Mbox 2 boot sequence...\n"); count = 0; - bootresponse = MBOX2_BOOT_LOADING; - while ((bootresponse == MBOX2_BOOT_LOADING) && (count < 10)) { + bootresponse[0] = MBOX2_BOOT_LOADING; + while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) { msleep(500); /* 0.5 second delay */ snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), /* Control magic - load onboard firmware */ 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012); - if (bootresponse == MBOX2_BOOT_READY) + if (bootresponse[0] == MBOX2_BOOT_READY) break; snd_printd("usb-audio: device not ready, resending boot sequence...\n"); count++; } - if (bootresponse != MBOX2_BOOT_READY) { - snd_printk(KERN_ERR "usb-audio: Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse); + if (bootresponse[0] != MBOX2_BOOT_READY) { + snd_printk(KERN_ERR "usb-audio: Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]); return -ENODEV; } @@ -660,7 +659,6 @@ static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip, return 0; /* keep this altsetting */ } - static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip, int iface, int altno) { diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h index a8172c119796..1ac3fd9cc5a6 100644 --- a/sound/usb/usbaudio.h +++ b/sound/usb/usbaudio.h @@ -76,7 +76,6 @@ enum quirk_type { QUIRK_MIDI_YAMAHA, QUIRK_MIDI_MIDIMAN, QUIRK_MIDI_NOVATION, - QUIRK_MIDI_MBOX2, QUIRK_MIDI_RAW_BYTES, QUIRK_MIDI_EMAGIC, QUIRK_MIDI_CME, |