[PATCH] sparc64: Fix BIOS Boot Partition support

[James Clarke]

Currently, gpt_offset is uninitialised when using a BIOS Boot Partition
but is used unconditionally inside save_blocklists. Instead, ensure it
is always initialised to 0 (note that there is already separate code to
do the equivalent adjustment after we call save_blocklists on this code
path).

This patch has been tested on a T5-2 LDOM.

Signed-off-by: James Clarke <address@hidden>
---
 util/setup.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/util/setup.c b/util/setup.c
index 6f88f3cc4..3be88aae1 100644
--- a/util/setup.c
+++ b/util/setup.c
@@ -270,6 +270,9 @@ SETUP (const char *dir,
 #ifdef GRUB_SETUP_BIOS
   bl.current_segment =
     GRUB_BOOT_I386_PC_KERNEL_SEG + (GRUB_DISK_SECTOR_SIZE >> 4);
+#endif
+#ifdef GRUB_SETUP_SPARC64
+  bl.gpt_offset = 0;
 #endif
   bl.last_length = 0;
 
@@ -730,7 +733,6 @@ unable_to_embed:
 #ifdef GRUB_SETUP_SPARC64
   {
     grub_partition_t container = root_dev->disk->partition;
-    bl.gpt_offset = 0;
 
     if (grub_strstr (container->partmap->name, "gpt"))
       bl.gpt_offset = grub_partition_get_start (container);
-- 
2.20.1