I suggest to specify email addresses for message recipients not only in the header field “Cc”. … > +++ b/sound/soc/fsl/lpc3xxx-i2s.c > @@ -0,0 +1,393 @@ … > +static int lpc3xxx_i2s_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai) > +{ … > + int ret = 0; > + > + mutex_lock(&i2s_info_p->lock); … > +lpc32xx_unlock: > + mutex_unlock(&i2s_info_p->lock); > + return ret; > +} … Would you become interested to apply a statement like “guard(mutex)(&i2s_info_p->lock);”? https://elixir.bootlin.com/linux/v6.10-rc4/source/include/linux/mutex.h#L196 Regards, Markus