ALSA/hda: intel-sdw-acpi: cleanup sdw_intel_scan_controller

Remove unnecessary initialization and un-shadow return code.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20241001070611.63288-2-yung-chuan.liao@linux.intel.com

Author: plbossart

sound/hda/intel-sdw-acpi.c

@@ -63,7 +63,6 @@ sdw_intel_scan_controller(struct sdw_intel_acpi_info *info)
 		return -EINVAL;
 
 	/* Found controller, find links supported */
-	count = 0;
 	ret = fwnode_property_read_u8_array(acpi_fwnode_handle(adev),
 					    "mipi-sdw-master-count", &count, 1);
 
@@ -82,7 +81,7 @@ sdw_intel_scan_controller(struct sdw_intel_acpi_info *info)
 	if (ret) {
 		dev_err(&adev->dev,
 			"Failed to read mipi-sdw-master-count: %d\n", ret);
-		return -EINVAL;
+		return ret;
 	}
 
 	/* Check count is within bounds */