Input: ES1370 (OSS) - do not carry around gameport code if gameport

       core support is disabled.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

sound/oss/es1370.c

@@ -161,6 +161,10 @@
 #include <asm/page.h>
 #include <asm/uaccess.h>
 
+#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
+#define SUPPORT_JOYSTICK
+#endif
+
 /* --------------------------------------------------------------------- */
 
 #undef OSS_DOCUMENTED_MIXER_SEMANTICS
@@ -384,7 +388,10 @@ struct es1370_state {
 		unsigned char obuf[MIDIOUTBUF];
 	} midi;
 
+#ifdef SUPPORT_JOYSTICK
 	struct gameport *gameport;
+#endif
+
 	struct semaphore sem;
 };
 
@@ -2553,10 +2560,55 @@ static struct initvol {
 	{ SOUND_MIXER_WRITE_OGAIN, 0x4040 }
 };
 
+#ifdef SUPPORT_JOYSTICK
+
+static int __devinit es1370_register_gameport(struct es1370_state *s)
+{
+	struct gameport *gp;
+
+	if (!request_region(0x200, JOY_EXTENT, "es1370")) {
+		printk(KERN_ERR "es1370: joystick io port 0x200 in use\n");
+		return -EBUSY;
+	}
+
+	s->gameport = gp = gameport_allocate_port();
+	if (!gp) {
+		printk(KERN_ERR "es1370: can not allocate memory for gameport\n");
+		release_region(0x200, JOY_EXTENT);
+		return -ENOMEM;
+	}
+
+	gameport_set_name(gp, "ESS1370");
+	gameport_set_phys(gp, "pci%s/gameport0", pci_name(s->dev));
+	gp->dev.parent = &s->dev->dev;
+	gp->io = 0x200;
+
+	s->ctrl |= CTRL_JYSTK_EN;
+	outl(s->ctrl, s->io + ES1370_REG_CONTROL);
+
+	gameport_register_port(gp);
+
+	return 0;
+}
+
+static inline void es1370_unregister_gameport(struct es1370_state *s)
+{
+	if (s->gameport) {
+		int gpio = s->gameport->io;
+		gameport_unregister_port(s->gameport);
+		release_region(gpio, JOY_EXTENT);
+
+	}
+}
+
+#else
+static inline int es1370_register_gameport(struct es1370_state *s) { return -ENOSYS; }
+static inline void es1370_unregister_gameport(struct es1370_state *s) { }
+#endif /* SUPPORT_JOYSTICK */
+
 static int __devinit es1370_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
 {
 	struct es1370_state *s;
-	struct gameport *gp = NULL;
 	mm_segment_t fs;
 	int i, val, ret;
 
@@ -2605,28 +2657,14 @@ static int __devinit es1370_probe(struct pci_dev *pcidev, const struct pci_devic
 	/* note: setting CTRL_SERR_DIS is reported to break
 	 * mic bias setting (by Kim.Berts@fisub.mail.abb.com) */
 	s->ctrl = CTRL_CDC_EN | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV) | (1 << CTRL_SH_WTSRSEL);
-	if (!request_region(0x200, JOY_EXTENT, "es1370")) {
-		printk(KERN_ERR "es1370: joystick io port 0x200 in use\n");
-	} else if (!(s->gameport = gp = gameport_allocate_port())) {
-		printk(KERN_ERR "es1370: can not allocate memory for gameport\n");
-		release_region(0x200, JOY_EXTENT);
-	} else {
-		gameport_set_name(gp, "ESS1370");
-		gameport_set_phys(gp, "pci%s/gameport0", pci_name(s->dev));
-		gp->dev.parent = &s->dev->dev;
-		gp->io = 0x200;
-		s->ctrl |= CTRL_JYSTK_EN;
-	}
 	if (lineout[devindex])
 		s->ctrl |= CTRL_XCTL0;
 	if (micbias[devindex])
 		s->ctrl |= CTRL_XCTL1;
 	s->sctrl = 0;
-	printk(KERN_INFO "es1370: found adapter at io %#lx irq %u\n"
-	       KERN_INFO "es1370: features: joystick %s, line %s, mic impedance %s\n",
-	       s->io, s->irq, (s->ctrl & CTRL_JYSTK_EN) ? "on" : "off",
-	       (s->ctrl & CTRL_XCTL0) ? "out" : "in",
-		       (s->ctrl & CTRL_XCTL1) ? "1" : "0");
+	printk(KERN_INFO "es1370: adapter at io %#lx irq %u, line %s, mic impedance %s\n",
+	       s->io, s->irq, (s->ctrl & CTRL_XCTL0) ? "out" : "in",
+	       (s->ctrl & CTRL_XCTL1) ? "1" : "0");
 	/* register devices */
 	if ((s->dev_audio = register_sound_dsp(&es1370_audio_fops, -1)) < 0) {
 		ret = s->dev_audio;
@@ -2672,9 +2710,7 @@ static int __devinit es1370_probe(struct pci_dev *pcidev, const struct pci_devic
 	}
 	set_fs(fs);
 
-	/* register gameport */
-	if (gp)
-		gameport_register_port(gp);
+	es1370_register_gameport(s);
 
 	/* store it in the driver field */
 	pci_set_drvdata(pcidev, s);
@@ -2696,10 +2732,6 @@ static int __devinit es1370_probe(struct pci_dev *pcidev, const struct pci_devic
  err_dev1:
 	printk(KERN_ERR "es1370: cannot register misc device\n");
 	free_irq(s->irq, s);
-	if (s->gameport) {
-		release_region(s->gameport->io, JOY_EXTENT);
-		gameport_free_port(s->gameport);
-	}
  err_irq:
 	release_region(s->io, ES1370_EXTENT);
  err_region:
@@ -2718,11 +2750,7 @@ static void __devexit es1370_remove(struct pci_dev *dev)
 	outl(0, s->io+ES1370_REG_SERIAL_CONTROL); /* clear serial interrupts */
 	synchronize_irq(s->irq);
 	free_irq(s->irq, s);
-	if (s->gameport) {
-		int gpio = s->gameport->io;
-		gameport_unregister_port(s->gameport);
-		release_region(gpio, JOY_EXTENT);
-	}
+	es1370_unregister_gameport(s);
 	release_region(s->io, ES1370_EXTENT);
 	unregister_sound_dsp(s->dev_audio);
 	unregister_sound_mixer(s->dev_mixer);