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path: root/drivers/char/hvc_iseries.c
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Diffstat (limited to 'drivers/char/hvc_iseries.c')
-rw-r--r--drivers/char/hvc_iseries.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/char/hvc_iseries.c b/drivers/char/hvc_iseries.c
index 8b6f197e5f8..f144a947bd1 100644
--- a/drivers/char/hvc_iseries.c
+++ b/drivers/char/hvc_iseries.c
@@ -29,6 +29,7 @@
#include <asm/hvconsole.h>
#include <asm/vio.h>
#include <asm/prom.h>
+#include <asm/firmware.h>
#include <asm/iseries/vio.h>
#include <asm/iseries/hv_call.h>
#include <asm/iseries/hv_lp_config.h>
@@ -488,6 +489,9 @@ static int hvc_vio_init(void)
atomic_t wait_flag;
int rc;
+ if (!firmware_has_feature(FW_FEATURE_ISERIES))
+ return -EIO;
+
/* +2 for fudge */
rc = viopath_open(HvLpConfig_getPrimaryLpIndex(),
viomajorsubtype_chario, VIOCHAR_WINDOW + 2);
@@ -562,7 +566,7 @@ static int hvc_find_vtys(void)
for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL;
vty = of_find_node_by_name(vty, "vty")) {
- uint32_t *vtermno;
+ const uint32_t *vtermno;
/* We have statically defined space for only a certain number
* of console adapters.
@@ -571,7 +575,7 @@ static int hvc_find_vtys(void)
(num_found >= VTTY_PORTS))
break;
- vtermno = (uint32_t *)get_property(vty, "reg", NULL);
+ vtermno = get_property(vty, "reg", NULL);
if (!vtermno)
continue;