md: md_clear_badblocks should return an error code on failure.

Julia Lawall and coccinelle report that md_clear_badblocks always
returns 0, despite appearing to have an error path.
The error path really should return an error code.  ENOSPC is
reasonably appropriate.

Reported-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 0ddf38988fbc..34846856dbc6 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -8343,7 +8343,7 @@ static int md_clear_badblocks(struct badblocks *bb, sector_t s, int sectors)
                         if (a < s) {
                                 /* we need to split this range */
                                 if (bb->count >= MD_MAX_BADBLOCKS) {
-                                        rv = 0;
+                                        rv = -ENOSPC;
                                         goto out;
                                 }
                                 memmove(p+lo+1, p+lo, (bb->count - lo) * 8);