X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=extras%2Fvolume_id%2Flib%2Ffat.c;h=e30318cf0967477e5931c58efd7dee6252fce42c;hp=95735c2d2d4f87e31843751d5d0667024caf4673;hb=3e39ff63658ed76398d0ee98f361221744fe591f;hpb=1d36813d4c3353c1194d3a7cdb31ac6f64a66e8f diff --git a/extras/volume_id/lib/fat.c b/extras/volume_id/lib/fat.c index 95735c2d2..e30318cf0 100644 --- a/extras/volume_id/lib/fat.c +++ b/extras/volume_id/lib/fat.c @@ -281,10 +281,6 @@ int volume_id_probe_vfat(struct volume_id *id, uint64_t off, uint64_t size) if (buf == NULL) return -1; - /* check signature */ - if (buf[510] != 0x55 || buf[511] != 0xaa) - return -1; - vs = (struct vfat_super_block *) buf; if (memcmp(vs->sysid, "NTFS", 4) == 0) return -1; @@ -305,6 +301,10 @@ int volume_id_probe_vfat(struct volume_id *id, uint64_t off, uint64_t size) if (memcmp(vs->type.fat.magic, "FAT12 ", 8) == 0) goto magic; + /* check signature */ + if (buf[510] != 0x55 || buf[511] != 0xaa) + return -1; + /* some old floppies don't have a magic, expect the boot jump address to match */ if ((vs->boot_jump[0] != 0xeb || vs->boot_jump[2] != 0x90) && vs->boot_jump[0] != 0xe9)