6lowpan: iphc: fix invalid case handling

This patch fixes the return value in a case which should never occur.
Instead returning "-EINVAL" we return LOWPAN_IPHC_DAM_00 which is
invalid on context based addresses. Also change the WARN_ON_ONCE to
WARN_ONCE which was suggested by Dan Carpenter.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alexander Aring 2016-02-26 09:06:07 +01:00 committed by Marcel Holtmann
parent 395174bb07
commit 2306f65637
1 changed files with 2 additions and 2 deletions

View File

@ -811,8 +811,8 @@ static u8 lowpan_compress_ctx_addr(u8 **hc_ptr, const struct in6_addr *ipaddr,
goto out;
}
WARN_ON_ONCE("context found but no address mode matched\n");
return -EINVAL;
WARN_ONCE(1, "context found but no address mode matched\n");
return LOWPAN_IPHC_DAM_00;
out:
if (sam)