libblkid: ubi: fix probe return values

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/libblkid/src/superblocks/ubi.c b/libblkid/src/superblocks/ubi.c
index b15199bd4981632aa088c23dae99573d9cc5b7fb..499c5ceaa560fac3bff5d142d3fcc4920fa42509 100644 (file)
--- a/libblkid/src/superblocks/ubi.c
+++ b/libblkid/src/superblocks/ubi.c
@@ -39,10 +39,10 @@ static int probe_ubi(blkid_probe pr, const struct blkid_idmag *mag)
 
        hdr = blkid_probe_get_sb(pr, mag, struct ubi_ec_hdr);
        if (!hdr)
-               return -1;
+               return errno ? -errno : BLKID_PROBE_NONE;
 
        if (!ubi_verify_csum(pr, hdr))
-               return -1;
+               return BLKID_PROBE_NONE;
 
        blkid_probe_sprintf_version(pr, "%u", hdr->version);
        blkid_probe_sprintf_uuid(pr, (unsigned char *)&hdr->image_seq, 4, "%u",