[PATCH] ipmi build fix

It looks like the recent IPMI patches had some -mm-onlyisms.

Signed-off-by: Neil Horman <[e-mail]>
Cc: Corey Minyard <[e-mail]>
Cc: Greg KH <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/char/ipmi/ipmi_devintf.c

···
 		 " interface.  Other values will set the major device number"
 		 " to that value.");
 
-static struct class *ipmi_class;
+static struct class_simple *ipmi_class;
 
 static void ipmi_new_smi(int if_num)
 {
···
 
 static void ipmi_smi_gone(int if_num)
 {
-	class_simple_device_remove(ipmi_class, MKDEV(ipmi_major, if_num));
+	class_simple_device_remove(MKDEV(ipmi_major, if_num));
 	devfs_remove("ipmidev/%d", if_num);
 }