Add recipient addition and modification patch to the body of the transmission. From: 이승빈 <seungbin.lee@xxxxxxxxxxx <mailto:seungbin.lee@xxxxxxxxxxx> > Sent: Thursday, June 19, 2025 10:25 AM To: 'tiwai@xxxxxxx' <tiwai@xxxxxxx <mailto:tiwai@xxxxxxx> > Subject: [PATCH] ASoC: soc-compress: Fix race condition in soc_compr_open_fe Hi I am sending this email to report an issue found in sound/soc/soc- compress.c. Scenario: Playing a mix of MP3 and WAV files repeatedly from YouTube Music by pressing "next". Issue occurs when snd_soc_dpcm_runtime_update is called and soc_compr_trigger_fe is invoked, causing the value of “fe- >dpcm[stream].runtime_update” to change mid-process. This results in a problem where, during the closing of the BE connected to the FE in snd_soc_dpcm_runtime_update, only the entry is removed from the list without actually being closed. The attached patch resolves this issue as confirmed through testing. Additionally, while performing DPCM related operations in soc-compress.c, snd_soc_dpcm_mutex_lock is used; however, soc_compr_trigger_fe does not have this lock. Please review the attached patch regarding this matter. Thank you.
