Work towards allowing larger internal bitmaps in version1 superblocks.

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

1 files changed, 8 insertions, 3 deletions

diff --git a/Grow.c b/Grow.c
index d669a4e..e218eb1 100644
--- a/Grow.c
+++ b/Grow.c
@@ -290,10 +290,15 @@ int Grow_addbitmap(char *devname, int fd, char *file, int chunk, int delay, int
 				if (fd2 < 0)
 					continue;
 				if (st->ss->load_super(st, fd2, &super, NULL)==0) {
-					st->ss->add_internal_bitmap(st, super,
+					if (st->ss->add_internal_bitmap(st, super,
 								    chunk, delay, write_behind,
-								    bitmapsize, 0, major);
-					st->ss->write_bitmap(st, fd2, super);
+									bitmapsize, 0, major))
+						st->ss->write_bitmap(st, fd2, super);
+					else {
+						fprintf(stderr, Name ": failed to create internal bitmap - chunksize problem.\n");
+						close(fd2);
+						return 1;
+					}
 				}
 				close(fd2);
 			}