For super1.0 bitmap offset is -16. So it needs to use int type for bitmap offset.
Fixes: 1fe2e1007310 (mdadm/bitmap: locate bitmap calcuate bitmap position wrongly)
Signed-off-by: Xiao Ni <xni@xxxxxxxxxx>
---
super1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/super1.c b/super1.c
index c05e623..a12a5bc 100644
--- a/super1.c
+++ b/super1.c
@@ -2631,7 +2631,7 @@ static int locate_bitmap1(struct supertype *st, int fd, int node_num)
else
ret = -1;
- offset = __le64_to_cpu(sb->super_offset) + __le32_to_cpu(sb->bitmap_offset);
+ offset = __le64_to_cpu(sb->super_offset) + (int32_t)__le32_to_cpu(sb->bitmap_offset);
if (node_num) {
bms = (bitmap_super_t*)(((char*)sb)+MAX_SB_SIZE);
bm_sectors_per_node = calc_bitmap_size(bms, 4096) >> 9;
--
2.7.5
