The memory pointed to by ns can be reallocated when checking mft records

Signed-off-by: Yousong Zhou <yszhou4t...@gmail.com>
---
 libblkid-tiny/ntfs.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/libblkid-tiny/ntfs.c b/libblkid-tiny/ntfs.c
index 3a9d5cb..dfe22e2 100644
--- a/libblkid-tiny/ntfs.c
+++ b/libblkid-tiny/ntfs.c
@@ -86,6 +86,7 @@ static int probe_ntfs(blkid_probe pr, const struct 
blkid_idmag *mag)
 
        uint32_t sectors_per_cluster, mft_record_size;
        uint16_t sector_size;
+       uint64_t volume_serial;
        uint64_t nr_clusters, off, attr_off;
        unsigned char *buf_mft;
 
@@ -146,12 +147,13 @@ static int probe_ntfs(blkid_probe pr, const struct 
blkid_idmag *mag)
                return 1;
 
 
+       volume_serial = ns->volume_serial;
        off = le64_to_cpu(ns->mft_cluster_location) * sector_size *
                sectors_per_cluster;
 
        DBG(LOWPROBE, ul_debug("NTFS: sector_size=%"PRIu16", 
mft_record_size=%"PRIu32", "
                        "sectors_per_cluster=%"PRIu32", nr_clusters=%"PRIu64" "
-                       "cluster_offset=%"PRIu64"",
+                       "cluster_offset=%"PRIu64", volume_serial=%"PRIu64"",
                        sector_size, mft_record_size,
                        sectors_per_cluster, nr_clusters,
                        off));
@@ -203,9 +205,9 @@ static int probe_ntfs(blkid_probe pr, const struct 
blkid_idmag *mag)
        }
 
        blkid_probe_sprintf_uuid(pr,
-                       (unsigned char *) &ns->volume_serial,
-                       sizeof(ns->volume_serial),
-                       "%016" PRIX64, le64_to_cpu(ns->volume_serial));
+                       (unsigned char *) &volume_serial,
+                       sizeof(volume_serial),
+                       "%016" PRIX64, le64_to_cpu(volume_serial));
        return 0;
 }
 

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