Create.c: check if freesize is equal 0

"freesize" can be equal 0, particularly after rounding to the chunk's size.
Creating should be aborted in such case.

Signed-off-by: Lukasz Dorau <lukasz.dorau@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/Create.c b/Create.c
index afcf1a53..436bd1d9 100644
--- a/Create.c
+++ b/Create.c
@@ -408,6 +408,11 @@ int Create(struct supertype *st, char *mddev,
 				do_default_chunk = 0;
 			}
 		}
+		if (!freesize) {
+			pr_err("no free space left on %s\n", dname);
+			fail = 1;
+			continue;
+		}
 
 		if (s->size && freesize < s->size) {
 			pr_err("%s is smaller than given size."