audio: don't pass "fd" to {en,dis}ableAudioDevice()

src/audio.c

@@ -19,9 +19,7 @@
 #include "audio.h"
 #include "audioOutput.h"
 #include "log.h"
-#include "command.h"
 #include "path.h"
-#include "ack.h"
 #include "myfprintf.h"
 #include "os_compat.h"
 
@@ -428,13 +426,10 @@ void sendMetadataToAudioDevice(const struct tag *tag)
 	}
 }
 
-int enableAudioDevice(int fd, unsigned int device)
+int enableAudioDevice(unsigned int device)
 {
-	if (device >= audioOutputArraySize) {
-		commandError(fd, ACK_ERROR_ARG, "audio output device id %i "
-			     "doesn't exist\n", device);
+	if (device >= audioOutputArraySize)
 		return -1;
-	}
 
 	if (!(audioDeviceStates[device] & 0x01))
 		audioDeviceStates[device] = DEVICE_ENABLE;
@@ -442,13 +437,11 @@ int enableAudioDevice(int fd, unsigned int device)
 	return 0;
 }
 
-int disableAudioDevice(int fd, unsigned int device)
+int disableAudioDevice(unsigned int device)
 {
-	if (device >= audioOutputArraySize) {
-		commandError(fd, ACK_ERROR_ARG, "audio output device id %i "
-			     "doesn't exist\n", device);
+	if (device >= audioOutputArraySize)
 		return -1;
-	}
+
 	if (audioDeviceStates[device] & 0x01)
 		audioDeviceStates[device] = DEVICE_DISABLE;
 

src/audio.h

@@ -60,9 +60,9 @@ void sendMetadataToAudioDevice(const struct tag *tag);
 
 /* these functions are called in the main parent process while the child
 	process is busy playing to the audio */
-int enableAudioDevice(int fd, unsigned int device);
+int enableAudioDevice(unsigned int device);
 
-int disableAudioDevice(int fd, unsigned int device);
+int disableAudioDevice(unsigned int device);
 
 void printAudioDevices(int fd);
 

src/command.c

@@ -1177,21 +1177,31 @@ static int handleCrossfade(int fd, mpd_unused int *permission,
 static int handleEnableDevice(int fd, mpd_unused int *permission,
 			      mpd_unused int argc, char *argv[])
 {
-	int device;
+	int device, ret;
 
 	if (check_int(fd, &device, argv[1], check_non_negative, argv[1]) < 0)
 		return -1;
-	return enableAudioDevice(fd, device);
+
+	ret = enableAudioDevice(device);
+	if (ret == -1)
+		commandError(fd, ACK_ERROR_NO_EXIST, "No such audio output");
+
+	return ret;
 }
 
 static int handleDisableDevice(int fd, mpd_unused int *permission,
 			       mpd_unused int argc, char *argv[])
 {
-	int device;
+	int device, ret;
 
 	if (check_int(fd, &device, argv[1], check_non_negative, argv[1]) < 0)
 		return -1;
-	return disableAudioDevice(fd, device);
+
+	ret = disableAudioDevice(device);
+	if (ret == -1)
+		commandError(fd, ACK_ERROR_NO_EXIST, "No such audio output");
+
+	return ret;
 }
 
 static int handleDevices(int fd, mpd_unused int *permission,