[PATCH][net-next] ipv6: fix incorrect bitwise operator used on rt6i_flags

[Colin King <colin.king@canonical.com>]

From: Colin Ian King <colin.king@canonical.com>

The use of the | operator always leads to true on the expression
(rt->rt6i_flags | RTF_CACHE) which looks rather suspect to me. I
believe this is fixed by using & instead to just check the
RTF_CACHE entry bit.

Detected by CoverityScan, CID#1457747 ("Wrong operator used")

Fixes: 35732d01fe31 ("ipv6: introduce a hash table to store dst cache")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 net/ipv6/route.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 6db1541eaa7b..0556d1ee189c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1425,7 +1425,7 @@ int rt6_remove_exception_rt(struct rt6_info *rt)
 	int err;
 
 	if (!from ||
-	    !(rt->rt6i_flags | RTF_CACHE))
+	    !(rt->rt6i_flags & RTF_CACHE))
 		return -EINVAL;
 
 	if (!rcu_access_pointer(from->rt6i_exception_bucket))
-- 
2.14.1