2 files changed, 4 insertions, 3 deletions

diff --git a/lib/reed_solomon/decode_rs.c b/lib/reed_solomon/decode_rs.c
index a58df56f09b6..0ec3f257ffdf 100644
--- a/lib/reed_solomon/decode_rs.c
+++ b/lib/reed_solomon/decode_rs.c
@@ -39,8 +39,7 @@
 
         /* Check length parameter for validity */
         pad = nn - nroots - len;
-        if (pad < 0 || pad >= nn)
-                return -ERANGE;
+        BUG_ON(pad < 0 || pad >= nn);
 
         /* Does the caller provide the syndrome ? */
         if (s != NULL)
@@ -203,7 +202,7 @@
                  * deg(lambda) unequal to number of roots => uncorrectable
                  * error detected
                  */
-                count = -1;
+                count = -EBADMSG;
                 goto finish;
         }
         /*
diff --git a/lib/reed_solomon/reed_solomon.c b/lib/reed_solomon/reed_solomon.c
index 5b0d8522b7ca..3ea2db94d5b0 100644
--- a/lib/reed_solomon/reed_solomon.c
+++ b/lib/reed_solomon/reed_solomon.c
@@ -320,6 +320,7 @@ EXPORT_SYMBOL_GPL(encode_rs8);
  *  The syndrome and parity uses a uint16_t data type to enable
  *  symbol size > 8. The calling code must take care of decoding of the
  *  syndrome result and the received parity before calling this code.
+ *  Returns the number of corrected bits or -EBADMSG for uncorrectable errors.
  */
 int decode_rs8(struct rs_control *rs, uint8_t *data, uint16_t *par, int len,
                uint16_t *s, int no_eras, int *eras_pos, uint16_t invmsk,
@@ -363,6 +364,7 @@ EXPORT_SYMBOL_GPL(encode_rs16);
  *  @corr:      buffer to store correction bitmask on eras_pos
  *
  *  Each field in the data array contains up to symbol size bits of valid data.
+ *  Returns the number of corrected bits or -EBADMSG for uncorrectable errors.
  */
 int decode_rs16(struct rs_control *rs, uint16_t *data, uint16_t *par, int len,
                 uint16_t *s, int no_eras, int *eras_pos, uint16_t invmsk,