linux/sound/hda
Yu Zhao b61749a89f
sound: enable interrupt after dma buffer initialization
In snd_hdac_bus_init_chip(), we enable interrupt before
snd_hdac_bus_init_cmd_io() initializing dma buffers. If irq has
been acquired and irq handler uses the dma buffer, kernel may crash
when interrupt comes in.

Fix the problem by postponing enabling irq after dma buffer
initialization. And warn once on null dma buffer pointer during the
initialization.

Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-12 11:21:55 +01:00
..
ext ALSA: hdac: add extended ops in the hdac_bus 2018-06-28 07:33:29 +02:00
array.c ALSA: hda: Fix krealloc() with __GFP_ZERO usage 2016-08-03 15:17:22 +02:00
hda_bus_type.c ALSA: hda - Advertise MODALIAS in uevent 2015-10-20 10:15:53 +02:00
hdac_bus.c ALSA: hda: Fix potential race at unregistration and unsol events 2017-06-20 07:53:57 +02:00
hdac_component.c ALSA: hda: Make audio component support more generic 2018-07-17 22:25:48 +02:00
hdac_controller.c sound: enable interrupt after dma buffer initialization 2018-09-12 11:21:55 +01:00
hdac_device.c ALSA: hda: Copying sync power state helper to core 2018-02-12 13:59:39 +01:00
hdac_i915.c ALSA: hda: Make audio component support more generic 2018-07-17 22:25:48 +02:00
hdac_regmap.c ALSA: hda - Use a macro for snd_array iteration loops 2018-04-24 13:41:53 +02:00
hdac_stream.c ALSA: hda - Avoid tricky macros 2017-04-03 08:42:43 +02:00
hdac_sysfs.c ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
hdmi_chmap.c ALSA: hda: Fix too short HDMI/DP chmap reporting 2017-11-17 12:20:37 +01:00
Kconfig ALSA: hda: Make audio component support more generic 2018-07-17 22:25:48 +02:00
local.h ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
Makefile ALSA: hda: Make audio component support more generic 2018-07-17 22:25:48 +02:00
trace.c ALSA: hda - Re-add tracepoints to HD-audio core driver 2015-03-23 13:17:58 +01:00
trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00