ALSA: control: Rename ctl_files_rwlock to controls_rwlock

We'll re-use the existing rwlock for the protection of control list
lookup, too, and now rename it to a more generic name.

This is a preliminary change, only the rename of the struct field
here, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20240809104234.8488-2-tiwai@suse.de
3 files changed