btrfs-progs: treat super.magic as an le64

[platform/upstream/btrfs-progs.git] / disk-io.c

diff --git a/disk-io.c b/disk-io.c
index 0bf73f0..d3b8c51 100644 (file)
--- a/disk-io.c
+++ b/disk-io.c
@@ -932,8 +932,7 @@ int btrfs_read_dev_super(int fd, struct btrfs_super_block *sb, u64 sb_bytenr)
                        return -1;
 
                if (btrfs_super_bytenr(&buf) != sb_bytenr ||
-                   strncmp((char *)(&buf.magic), BTRFS_MAGIC,
-                           sizeof(buf.magic)))
+                   buf.magic != cpu_to_le64(BTRFS_MAGIC))
                        return -1;
 
                memcpy(sb, &buf, sizeof(*sb));
@@ -951,8 +950,7 @@ int btrfs_read_dev_super(int fd, struct btrfs_super_block *sb, u64 sb_bytenr)
                /* if magic is NULL, the device was removed */
                if (buf.magic == 0 && i == 0) 
                        return -1;
-               if (strncmp((char *)(&buf.magic), BTRFS_MAGIC,
-                           sizeof(buf.magic)))
+               if (buf.magic != cpu_to_le64(BTRFS_MAGIC))
                        continue;
 
                if (!fsid_is_initialized) {