linux/sound
Kuninori Morimoto 02299d9875 ASoC: rsnd: spin lock for interrupt handler
Renesas R-Car driver interrupt handler was not locked before.
But now, SSI/SRC interrupt handler calls restart function
which should be called under spin lock.
Below error might happen witout this patch.

Unable to handle kernel NULL pointer dereference at virtual address 00000048
pgd = edfac000
[00000048] *pgd=6e0f0831, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] SMP ARM
CPU: 0 PID: 2009 Comm: aplay Not tainted 4.1.0-rc2-dirty #4
Hardware name: Generic R8A7790 (Flattened Device Tree)
task: eeac9040 ti: eebe8000 task.ti: eebe8000
PC is at rsnd_get_adinr+0x28/0x60
LR is at rsnd_src_ssiu_start+0xdc/0x19c
pc : [<c0409790>]    lr : [<c040c068>]    psr: a0000193
sp : eebe9e58  ip : eebe9e68  fp : eebe9e64
r10: c06ed9d0  r9 : ee919d10  r8 : 00000001
r7 : 00000001  r6 : ee1cb090  r5 : 00000000  r4 : edcaa418
r3 : 00000000  r2 : eea8ce00  r1 : 80000193  r0 : edcaa418
...

Reported-by: Cao Minh Hiep <cm-hiep@jinso.co.jp>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com>
Tested by: Cao Minh Hiep <cm-hiep@jinso.co.jp>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-05-22 14:15:26 +01:00
..
aoa ALSA: aoa: constify of_device_id array 2015-03-19 12:11:13 +01:00
arm ALSA: Deletion of checks before the function call "iounmap" 2015-01-04 15:13:45 +01:00
atmel ALSA: sound/atmel/ac97c.c: Add device tree support 2015-01-07 07:56:19 +01:00
core sound updates for 4.1-rc1 2015-04-15 15:41:41 -07:00
drivers Merge branch 'for-linus' into for-next 2015-03-09 08:42:00 +01:00
firewire Merge branch 'for-next' into for-linus 2015-04-13 10:23:18 +02:00
hda ALSA: hda - set GET bit when adding a vendor verb to the codec regmap 2015-04-14 07:25:42 +02:00
i2c ALSA: ak411x: simplify snd_ak4113_create() a bit 2015-03-23 13:58:59 +01:00
isa sound: Deparenthesize negative error returns 2015-03-24 11:41:37 +01:00
mips ALSA: au1x00: fix error return code 2015-04-05 18:04:27 +02:00
oss sound/oss: fix deadlock in sequencer_ioctl(SNDCTL_SEQ_OUTOFBAND) 2015-04-18 09:05:55 +02:00
parisc ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
pci ALSA: hda - fix headset mic detection problem for one more machine 2015-04-24 07:47:08 +02:00
pcmcia
ppc powerpc: Move Power Macintosh drivers to generic byteswappers 2015-03-23 14:29:40 +11:00
sh ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
soc ASoC: rsnd: spin lock for interrupt handler 2015-05-22 14:15:26 +01:00
sparc ALSA: Include linux/io.h instead of asm/io.h 2015-01-28 16:49:33 +01:00
spi
synth ALSA: Include linux/uaccess.h and linux/bitopts.h instead of asm/* 2015-01-28 17:25:07 +01:00
usb ALSA: usb-audio: Fix audio output on Roland SC-D70 sound module 2015-04-21 07:59:10 +02:00
ac97_bus.c
Kconfig ALSA: hda - Make snd_hda_bus_type public 2015-03-23 13:15:51 +01:00
last.c
Makefile ALSA: hda - Make snd_hda_bus_type public 2015-03-23 13:15:51 +01:00
sound_core.c
sound_firmware.c