[PATCH] msnd.c build fix

sound/oss/msnd.c: In function `msnd_enable_irq':
sound/oss/msnd.c:278: warning: implicit declaration of function `enable_irq'
sound/oss/msnd.c: In function `msnd_disable_irq':
sound/oss/msnd.c:307: warning: implicit declaration of function `disable_irq'

sound/oss/msnd.c:323: `msnd_get_num_devs' undeclared here (not in a function)
sound/oss/msnd.c:323: initializer element is not constant
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

sound/oss/msnd.c

@@ -33,6 +33,8 @@
 #include <linux/delay.h>
 #include <linux/mm.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
+
 #include <asm/io.h>
 #include <asm/uaccess.h>
 #include <linux/spinlock.h>