On Sun, 12 Feb 2023 23:09:23 +0100, Alexander Sverdlin wrote:
> Commit 2458adb8f92a
> ("SoC: simple-card-utils: set 0Hz to sysclk when shutdown")
> added a call to snd_soc_dai_set_sysclk() with 0 Hz frequency. Being
> propagated further it causes a division by zero in clk-ep93xx driver:
>
> Division by zero in kernel.
> CPU: 0 PID: 52 Comm: aplay Tainted: G W 6.2.0-rc4-... #1
> Hardware name: Generic DT based system
> unwind_backtrace from show_stack+0x10/0x18
> show_stack from dump_stack_lvl+0x28/0x34
> dump_stack_lvl from __div0+0x10/0x1c
> __div0 from Ldiv0+0x8/0x1c
> Ldiv0 from ep93xx_mux_determine_rate+0x78/0x1d0
> ep93xx_mux_determine_rate from clk_core_round_rate_nolock+0x48/0xc8
> clk_core_round_rate_nolock from clk_core_set_rate_nolock+0x48/0x160
> clk_core_set_rate_nolock from clk_set_rate+0x30/0x8c
> clk_set_rate from ep93xx_i2s_set_sysclk+0x30/0x6c
> ep93xx_i2s_set_sysclk from snd_soc_dai_set_sysclk+0x3c/0xa4
> snd_soc_dai_set_sysclk from asoc_simple_shutdown+0xb8/0x164
> asoc_simple_shutdown from snd_soc_link_shutdown+0x44/0x54
> snd_soc_link_shutdown from soc_pcm_clean+0x78/0x180
> soc_pcm_clean from soc_pcm_close+0x28/0x40
> soc_pcm_close from snd_pcm_release_substream.part.0+0x3c/0x84
> snd_pcm_release_substream.part.0 from snd_pcm_release+0x40/0x88
> snd_pcm_release from __fput+0x74/0x278
>
> [...]
Applied to
broonie/sound.git for-next
Thanks!
[1/1] ASoC: ep93xx: ignore 0 Hz sysclk
commit: 66dc3b9b9a6f4b5c7013f15c66073ddd20852b66
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
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Thanks,
Mark
