s/Efoo/-Efoo/ cleanup for drivers:

etherh acorn net driver, mtdblock_ro mtd driver, and
sym 2 scsi driver.

drivers/acorn/net/etherh.c

@@ -513,7 +513,7 @@ static int __init etherh_addr(char *addr, struct expansion_card *ec)
 		if (i == 6)
 			return 0;
 	}
-	return ENODEV;
+	return -ENODEV;
 }
 
 /*
@@ -524,7 +524,7 @@ static int __init etherm_addr(char *addr)
 	unsigned int serial;
 
 	if (system_serial_low == 0 && system_serial_high == 0)
-		return ENODEV;
+		return -ENODEV;
 
 	serial = system_serial_low | system_serial_high;
 

drivers/mtd/mtdblock_ro.c

@@ -258,7 +258,7 @@ int __init init_mtdblock(void)
 	if (register_blkdev(MAJOR_NR,DEVICE_NAME,&mtd_fops)) {
 		printk(KERN_NOTICE "Can't allocate major number %d for Memory Technology Devices.\n",
 		       MTD_BLOCK_MAJOR);
-		return EAGAIN;
+		return -EAGAIN;
 	}
 	
 	/* We fill it in at open() time. */

drivers/scsi/sym53c8xx_2/sym_hipd.c

@@ -5947,7 +5947,7 @@ int sym_hcb_attach(hcb_p np, struct sym_fw *fw)
 	 */
 attach_failed:
 		sym_hcb_free(np);
-	return ENXIO;
+	return -ENXIO;
 }
 
 /*