ASoC: meson: axg-card: Fix nonatomic links
authorNeil Armstrong <narmstrong@baylibre.com>
Thu, 21 Apr 2022 15:57:25 +0000 (17:57 +0200)
committerMark Brown <broonie@kernel.org>
Thu, 21 Apr 2022 17:25:15 +0000 (18:25 +0100)
This commit e138233e56e9829e65b6293887063a1a3ccb2d68 causes the
following system crash when using audio on G12A/G12B & SM1 systems:

 BUG: sleeping function called from invalid context at kernel/locking/mutex.c:282
  in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 0, name: swapper/0
 preempt_count: 10001, expected: 0
 RCU nest depth: 0, expected: 0
 Preemption disabled at:
 schedule_preempt_disabled+0x20/0x2c

 mutex_lock+0x24/0x60
 _snd_pcm_stream_lock_irqsave+0x20/0x3c
 snd_pcm_period_elapsed+0x24/0xa4
 axg_fifo_pcm_irq_block+0x64/0xdc
 __handle_irq_event_percpu+0x104/0x264
 handle_irq_event+0x48/0xb4
 ...
 start_kernel+0x3f0/0x484
 __primary_switched+0xc0/0xc8

Revert this commit until the crash is fixed.

Fixes: e138233e56e9829e65b6 ("ASoC: meson: axg-card: make links nonatomic")
Reported-by: Dmitry Shmidt <dimitrysh@google.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20220421155725.2589089-2-narmstrong@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/meson/axg-card.c

index cbbaa55..2b77010 100644 (file)
@@ -320,7 +320,6 @@ static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np,
 
        dai_link->cpus = cpu;
        dai_link->num_cpus = 1;
-       dai_link->nonatomic = true;
 
        ret = meson_card_parse_dai(card, np, &dai_link->cpus->of_node,
                                   &dai_link->cpus->dai_name);