net: dsa: Fix inverted test for multiple CPU interface

Remove the wrong !, otherwise we get false positives about having
multiple CPU interfaces.

Fixes: b22de490869d ("net: dsa: store CPU switch structure in the tree")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 77cb78767f1d..1f3afeb673d6 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -225,7 +225,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent)
                         continue;
 
                 if (!strcmp(name, "cpu")) {
-                        if (!dst->cpu_switch) {
+                        if (dst->cpu_switch) {
                                 netdev_err(dst->master_netdev,
                                            "multiple cpu ports?!\n");
                                 return -EINVAL;