ddf: make sure Create fails if devices are too small.

Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/super-ddf.c b/super-ddf.c
index 11a3bac9092993230362dbb070b1b0099eb7e6dd..7cc5ac66f11dfd70f3749f38bf1ef6d7f64b6817 100644 (file)
--- a/super-ddf.c
+++ b/super-ddf.c
@@ -2651,6 +2651,8 @@ validate_geometry_ddf_container(struct supertype *st,
        close(fd);
 
        *freesize = avail_size_ddf(st, ldsize >> 9);
+       if (*freesize == 0)
+               return 0;
 
        return 1;
 }