Index: uspace/app/mixerctl/mixerctl.c
===================================================================
--- uspace/app/mixerctl/mixerctl.c	(revision cecba66ea48d60cfa59865e98aeda663808e42c7)
+++ uspace/app/mixerctl/mixerctl.c	(revision e211ea04fccf33d4cb2092f630a29e893e096a02)
@@ -51,5 +51,5 @@
 	const char* name = NULL;
 	unsigned count = 0;
-	int ret = audio_mixer_get_info(exch, &name, &count);
+	errno_t ret = audio_mixer_get_info(exch, &name, &count);
 	if (ret != EOK) {
 		printf("Failed to get mixer info: %s.\n", str_error(ret));
@@ -61,5 +61,5 @@
 		const char *name = NULL;
 		unsigned levels = 0, current = 0;
-		int ret =
+		errno_t ret =
 		    audio_mixer_get_item_info(exch, i, &name, &levels);
 		if (ret != EOK) {
@@ -99,5 +99,5 @@
 	const unsigned item = get_number(argv[params++]);
 	const unsigned value = get_number(argv[params]);
-	int ret = audio_mixer_set_item_level(exch, item, value);
+	errno_t ret = audio_mixer_set_item_level(exch, item, value);
 	if (ret != EOK) {
 		printf("Failed to set item level: %s.\n", str_error(ret));
@@ -118,5 +118,5 @@
 	unsigned value = 0;
 
-	int ret = audio_mixer_get_item_level(exch, item, &value);
+	errno_t ret = audio_mixer_get_item_level(exch, item, &value);
 	if (ret != EOK) {
 		printf("Failed to get item level: %s.\n", str_error(ret));
@@ -148,5 +148,5 @@
 
 	service_id_t mixer_sid;
-	int rc = loc_service_get_id(service, &mixer_sid, 0);
+	errno_t rc = loc_service_get_id(service, &mixer_sid, 0);
 	if (rc != EOK) {
 		printf("Failed to resolve service '%s': %s.\n",