[PATCH net-next] cxgb4: fix error return code in cxgb4_set_hash_filter()

[Wei Yongjun]

Fix to return a negative error code from thecxgb4_alloc_atid()
error handling case instead of 0.

Fixes: 12b276fbf6e0 ("cxgb4: add support to create hash filters")
Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c 
b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
index abab67d..5980f30 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
@@ -1110,8 +1110,10 @@ static int cxgb4_set_hash_filter(struct net_device *dev,
        }
 
        atid = cxgb4_alloc_atid(t, f);
-       if (atid < 0)
+       if (atid < 0) {
+               ret = atid;
                goto free_smt;
+       }
 
        iconf = adapter->params.tp.ingress_config;
        if (iconf & VNIC_F) {