… > The driver is for amplifiers aw88166 of Awinic Technology … You may occasionally put more than 57 characters into text lines of such a change description. See also: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.14-rc4#n94 … > +++ b/sound/soc/codecs/aw88166.c > @@ -0,0 +1,1937 @@ … > +static int aw_dev_dsp_read(struct aw_device *aw_dev, + unsigned short dsp_addr, unsigned int *dsp_data, unsigned char data_type) > +{ … > + mutex_lock(&aw_dev->dsp_lock); > + switch (data_type) { > + case AW88166_DSP_16_DATA: … > + mutex_unlock(&aw_dev->dsp_lock); > + > + return ret; > +} … Under which circumstances would you become interested to apply a statement like “guard(mutex)(&aw_dev->dsp_lock);”? https://elixir.bootlin.com/linux/v6.14-rc4/source/include/linux/mutex.h#L201 Regards, Markus