small cleanup in ax25_addr_parse()

The comments were wrong here because "AX25_MAX_DIGIS" is 8 but the
comments say 6.  Also I've changed the "7" to "AX25_ADDR_LEN".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/net/ax25/ax25_addr.c b/net/ax25/ax25_addr.c
index 9162409559cf..e7c9b0ea17a1 100644
--- a/net/ax25/ax25_addr.c
+++ b/net/ax25/ax25_addr.c
@@ -189,8 +189,10 @@ const unsigned char *ax25_addr_parse(const unsigned char *buf, int len,
         digi->ndigi      = 0;
 
         while (!(buf[-1] & AX25_EBIT)) {
-                if (d >= AX25_MAX_DIGIS)  return NULL;  /* Max of 6 digis */
-                if (len < 7) return NULL;       /* Short packet */
+                if (d >= AX25_MAX_DIGIS)
+                        return NULL;
+                if (len < AX25_ADDR_LEN)
+                        return NULL;
 
                 memcpy(&digi->calls[d], buf, AX25_ADDR_LEN);
                 digi->ndigi = d + 1;