[PATCH] check_region fixes

A couple of old ISA drivers had trivial to fix check_region() uses.
Sanitized.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

sound/oss/gus_card.c

@@ -41,9 +41,6 @@ static void __init attach_gus(struct address_info *hw_config)
 {
 	gus_wave_init(hw_config);
 
-	request_region(hw_config->io_base, 16, "GUS");
-	request_region(hw_config->io_base + 0x100, 12, "GUS");	/* 0x10c-> is MAX */
-
 	if (sound_alloc_dma(hw_config->dma, "GUS"))
 		printk(KERN_ERR "gus_card.c: Can't allocate DMA channel %d\n", hw_config->dma);
 	if (hw_config->dma2 != -1 && hw_config->dma2 != hw_config->dma)
@@ -73,11 +70,7 @@ static int __init probe_gus(struct address_info *hw_config)
 			  printk(KERN_ERR "GUS: Unsupported IRQ %d\n", irq);
 			  return 0;
 		  }
-	if (check_region(hw_config->io_base, 16))
-		printk(KERN_ERR "GUS: I/O range conflict (1)\n");
-	else if (check_region(hw_config->io_base + 0x100, 16))
-		printk(KERN_ERR "GUS: I/O range conflict (2)\n");
-	else if (gus_wave_detect(hw_config->io_base))
+	if (gus_wave_detect(hw_config->io_base))
 		return 1;
 
 #ifndef EXCLUDE_GUS_IODETECT
@@ -86,17 +79,14 @@ static int __init probe_gus(struct address_info *hw_config)
 	 * Look at the possible base addresses (0x2X0, X=1, 2, 3, 4, 5, 6)
 	 */
 
-	for (io_addr = 0x210; io_addr <= 0x260; io_addr += 0x10)
-		if (io_addr != hw_config->io_base)	/*
-							 * Already tested
-							 */
-			if (!check_region(io_addr, 16))
-				if (!check_region(io_addr + 0x100, 16))
-					if (gus_wave_detect(io_addr))
-					  {
+	for (io_addr = 0x210; io_addr <= 0x260; io_addr += 0x10) {
+		if (io_addr == hw_config->io_base)	/* Already tested */
+			continue;
+		if (gus_wave_detect(io_addr)) {
 			hw_config->io_base = io_addr;
 			return 1;
 		}
+	}
 #endif
 
 	printk("NO GUS card found !\n");

sound/oss/gus_wave.c

@@ -978,6 +978,13 @@ int __init gus_wave_detect(int baseaddr)
 	unsigned long   loc;
 	unsigned char   val;
 
+	if (!request_region(baseaddr, 16, "GUS"))
+		return 0;
+	if (!request_region(baseaddr + 0x100, 12, "GUS")) { /* 0x10c-> is MAX */
+		release_region(baseaddr, 16);
+		return 0;
+	}
+
 	gus_base = baseaddr;
 
 	gus_write8(0x4c, 0);	/* Reset GF1 */
@@ -1015,8 +1022,11 @@ int __init gus_wave_detect(int baseaddr)
 
 	/* See if there is first block there.... */
 	gus_poke(0L, 0xaa);
-	if (gus_peek(0L) != 0xaa)
-		return (0);
+	if (gus_peek(0L) != 0xaa) {
+		release_region(baseaddr + 0x100, 12);
+		release_region(baseaddr, 16);
+		return 0;
+	}
 
 	/* Now zero it out so that I can check for mirroring .. */
 	gus_poke(0L, 0x00);

sound/oss/msnd_pinnacle.c

@@ -1145,11 +1145,10 @@ static int __init probe_multisound(void)
 	char *pinfiji = "Pinnacle/Fiji";
 #endif
 
-	if (check_region(dev.io, dev.numio)) {
+	if (!request_region(dev.io, dev.numio, "probing")) {
 		printk(KERN_ERR LOGNAME ": I/O port conflict\n");
 		return -ENODEV;
 	}
-	request_region(dev.io, dev.numio, "probing");
 
 	if (reset_dsp() < 0) {
 		release_region(dev.io, dev.numio);
@@ -1833,12 +1832,11 @@ static int __init msnd_init(void)
 		/* Joystick */
 		pinnacle_devs[3].io0 = joystick_io;
 
-		if (check_region(cfg, 2)) {
+		if (!request_region(cfg, 2, "Pinnacle/Fiji Config")) {
 			printk(KERN_ERR LOGNAME ": Config port 0x%x conflict\n", cfg);
 			return -EIO;
 		}
 
-		request_region(cfg, 2, "Pinnacle/Fiji Config");
 		if (msnd_pinnacle_cfg_devices(cfg, reset, pinnacle_devs)) {
 			printk(KERN_ERR LOGNAME ": Device configuration error\n");
 			release_region(cfg, 2);