[POWERPC] iSeries: fix viocd init

Only initialise viocd on legacy iSeries.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index 54ca931e19e..93fbf84dcc4 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -47,6 +47,7 @@
 #include <asm/iseries/hv_types.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/vio.h>
+#include <asm/firmware.h>
 
 #define VIOCD_DEVICE                    "iseries/vcd"
 
@@ -748,6 +749,9 @@ static int __init viocd_init(void)
         struct proc_dir_entry *e;
         int ret = 0;
 
+        if (!firmware_has_feature(FW_FEATURE_ISERIES))
+                return -ENODEV;
+
         if (viopath_hostLp == HvLpIndexInvalid) {
                 vio_set_hostlp();
                 /* If we don't have a host, bail out */