[PATCH V0 1/1] ALSA: pcm: fix blocking while loop in snd_pcm_update_hw_ptr0()

[Jaroslav Kysela]

On 25. 02. 22 11:39, Raghu Bankapur wrote:
> When period interrupts are disabled, while loop in snd_pcm_update_hw_ptr0()
> results in the machine locking up if runtime->hw_ptr_buffer_jiffies is 0.
> Validate runtime->hw_ptr_buffer_jiffies value before while loop to avoid
> delta check.

I would set hw_ptr_buffer_jiffies to 1 in this case in snd_pcm_post_start().

						Jaroslav

-- 
Jaroslav Kysela <perex at perex.cz>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.