sfc: Fix check for failure of MC_CMD_FLUSH_RX_QUEUES

efx_mcdi_rpc_start() returns a negative value on error or zero on
success.  However one caller that can't properly handle failure then
does WARN_ON(rc > 0).  Change it to WARN_ON(rc < 0).

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c
index aea43cbd0520..e1967fbad161 100644
--- a/drivers/net/ethernet/sfc/mcdi.c
+++ b/drivers/net/ethernet/sfc/mcdi.c
@@ -1216,7 +1216,7 @@ int efx_mcdi_flush_rxqs(struct efx_nic *efx)
 
         rc = efx_mcdi_rpc(efx, MC_CMD_FLUSH_RX_QUEUES, (u8 *)qid,
                           count * sizeof(*qid), NULL, 0, NULL);
-        WARN_ON(rc > 0);
+        WARN_ON(rc < 0);
 
         kfree(qid);