[PATCH] remove check_region from nj_u.c

  This patch for isdn/hisax/nj_u.c driver for Linux removes one call to
  check_region using request_region instead.

  I don't have this hardware so I hope I got it right.  This patch
  removes all references to check_region in this driver.

  This is patch number 15 in a series of check_region patches I am doing as
  part of the kernel janitors project.

drivers/isdn/hisax/nj_u.c

@@ -213,15 +213,13 @@ setup_netjet_u(struct IsdnCard *card)
 	printk(KERN_INFO
 		"NETspider-U: PCI card configured at %#lx IRQ %d\n",
 		cs->hw.njet.base, cs->irq);
-	if (check_region(cs->hw.njet.base, bytecnt)) {
+	if (!request_region(cs->hw.njet.base, bytecnt, "netspider-u isdn")) {
 		printk(KERN_WARNING
 		       "HiSax: %s config port %#lx-%#lx already in use\n",
 		       CardType[card->typ],
 		       cs->hw.njet.base,
 		       cs->hw.njet.base + bytecnt);
 		return (0);
-	} else {
-		request_region(cs->hw.njet.base, bytecnt, "netspider-u isdn");
 	}
 	reset_netjet_u(cs);
 	cs->dc_hw_ops = &netjet_dc_ops;