ASoC: amd: amd_sdw: Fix unlikely uninitialized variable use in create_sdw_dailinks()

BugLink: https://bugs.launchpad.net/bugs/2120812

commit 4d87ae7508cb7ff58fd0bcecc6e9491f42f987f8 upstream.

Initialize current_be_id to 0 in AMD legacy stack(NO DSP enabled) SoundWire
generic machine driver code to handle the unlikely case when there are no
devices connected to a DAI.

In this case create_sdw_dailink() would return without touching the passed
pointer to current_be_id.

Found by gcc -fanalyzer

Cc: stable@vger.kernel.org
Fixes: 2981d9b ("ASoC: amd: acp: add soundwire machine driver for legacy stack")
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20250506120823.3621604-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Noah Wager <noah.wager@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

Author: vijendarmukunda

sound/soc/amd/acp/acp-sdw-legacy-mach.c

@@ -263,7 +263,7 @@ static int create_sdw_dailinks(struct snd_soc_card *card,
 
 	/* generate DAI links by each sdw link */
 	while (soc_dais->initialised) {
-		int current_be_id;
+		int current_be_id = 0;
 
 		ret = create_sdw_dailink(card, soc_dais, dai_links,
 					 &current_be_id, codec_conf, sdw_platform_component);