ALSA: hda: hdac_ext_controller: remove useless loop

commit 0b00a561 ("ALSA: hdac_ext: add hdac extended controller")
introduced a for() loop on the number of HDaudio codecs that seems
completely useless.

a) the body of the loop does not make use of the loop index, and
b) the LSDIID register is related to the SDI line, so there can only
be one codec per multi-link descriptor.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20221019162115.185917-10-pierre-louis.bossart@linux.intel.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/hda/ext/hdac_ext_controller.c

@@ -135,10 +135,8 @@ EXPORT_SYMBOL_GPL(snd_hdac_ext_link_free_all);
 struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_addr(struct hdac_bus *bus, int addr)
 {
 	struct hdac_ext_link *hlink;
-	int i;
 
 	list_for_each_entry(hlink, &bus->hlink_list, list)
-		for (i = 0; i < HDA_MAX_CODECS; i++)
 		if (hlink->lsdiid & (0x1 << addr))
 			return hlink;
 	return NULL;