From: Javier González <[email protected]>

Make sure that the variable controlling block threshold for allocating
extra metadata sectors in case of a line with bad blocks does not get a
negative value. Otherwise, the line will be marked as corrupted and
wasted.

Signed-off-by: Javier González <[email protected]>
Signed-off-by: Matias Bjørling <[email protected]>
---
 drivers/lightnvm/pblk-init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 3c37491..c7239c4 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -710,7 +710,7 @@ static int pblk_lines_init(struct pblk *pblk)
                goto add_emeta_page;
        }
 
-       lm->emeta_bb = geo->nr_luns - i;
+       lm->emeta_bb = geo->nr_luns > i ? geo->nr_luns - i : 0;
 
        lm->min_blk_line = 1;
        if (geo->nr_luns > 1)
-- 
2.9.3

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