sound: fix up header cleanups: add include <linux/interrupt.h>

also fix a bug in hammerfall driver, removing __exit from a function
that is called from a non __exit function.

sound/isa/ad1816a/ad1816a_lib.c

@@ -19,15 +19,17 @@
 */
 
 #include <sound/driver.h>
-#include <asm/io.h>
-#include <asm/dma.h>
 #include <linux/delay.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/ioport.h>
 #include <sound/core.h>
 #include <sound/ad1816a.h>
 
+#include <asm/io.h>
+#include <asm/dma.h>
+
 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
 MODULE_DESCRIPTION("lowlevel code for Analog Devices AD1816A chip");
 MODULE_LICENSE("GPL");

sound/pci/rme9652/hammerfall_mem.c

@@ -178,7 +178,7 @@ void snd_hammerfall_free_buffer (struct pci_dev *pcidev, void *addr)
 	printk ("Hammerfall memory allocator: unknown buffer address or PCI device ID");
 }
 
-static void __exit hammerfall_free_buffers (void)
+static void hammerfall_free_buffers (void)
 
 {
 	int i;