X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fchar%2Fviotape.c;h=13faf8d17482a58fdd3dcee95e33769f4bbb6b59;hb=f54496f55a729078e9eef90bf9e0783857a27db1;hp=94d79cb8ce8d559ac4690eabb7e30f7ad1cb00d2;hpb=11c302c14d8ddc47504bd3b650bc9e8da7c717b7;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c
index 94d79cb8ce8..13faf8d1748 100644
--- a/drivers/char/viotape.c
+++ b/drivers/char/viotape.c
@@ -49,7 +49,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
-
+#include <asm/firmware.h>
 #include <asm/vio.h>
 #include <asm/iseries/vio.h>
 #include <asm/iseries/hv_lp_event.h>
@@ -872,7 +872,7 @@ free_op:
 	return ret;
 }
 
-struct file_operations viotap_fops = {
+const struct file_operations viotap_fops = {
 	owner: THIS_MODULE,
 	read: viotap_read,
 	write: viotap_write,
@@ -997,6 +997,9 @@ int __init viotap_init(void)
 	int ret;
 	struct proc_dir_entry *e;
 
+	if (!firmware_has_feature(FW_FEATURE_ISERIES))
+		return -ENODEV;
+
 	op_struct_list = NULL;
 	if ((ret = add_op_structs(VIOTAPE_MAXREQ)) < 0) {
 		printk(VIOTAPE_KERN_WARN "couldn't allocate op structs\n");