The length of the data load must be at least one. Or in other words,
there must be room for at least 1 data and nroots parity symbols after
shortening the RS code.

Signed-off-by: Ferdinand Blomqvist <[email protected]>
---
 lib/reed_solomon/decode_rs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/reed_solomon/decode_rs.c b/lib/reed_solomon/decode_rs.c
index 3313bf944ff1..22006eaa41e6 100644
--- a/lib/reed_solomon/decode_rs.c
+++ b/lib/reed_solomon/decode_rs.c
@@ -39,7 +39,7 @@
 
        /* Check length parameter for validity */
        pad = nn - nroots - len;
-       BUG_ON(pad < 0 || pad >= nn);
+       BUG_ON(pad < 0 || pad >= nn - nroots);
 
        /* Does the caller provide the syndrome ? */
        if (s != NULL)
-- 
2.17.2

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