ASoC: mediatek: common: fix device and OF node leak

Make sure to drop the references to the accdet OF node and platform
device taken by of_parse_phandle() and of_find_device_by_node() after
looking up the sound component during probe.

Fixes: cf536e2 ("ASoC: mediatek: common: Handle mediatek,accdet property")
Cc: stable@vger.kernel.org	# 6.15
Cc: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20250722092542.32754-1-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: jhovold

sound/soc/mediatek/common/mtk-soundcard-driver.c

@@ -262,9 +262,13 @@ int mtk_soundcard_common_probe(struct platform_device *pdev)
 				soc_card_data->accdet = accdet_comp;
 			else
 				dev_err(&pdev->dev, "No sound component found from mediatek,accdet property\n");
+
+			put_device(&accdet_pdev->dev);
 		} else {
 			dev_err(&pdev->dev, "No device found from mediatek,accdet property\n");
 		}
+
+		of_node_put(accdet_node);
 	}
 
 	platform_node = of_parse_phandle(pdev->dev.of_node, "mediatek,platform", 0);