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>
diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c
index aea43cb..e1967fb 100644
--- a/drivers/net/ethernet/sfc/mcdi.c
+++ b/drivers/net/ethernet/sfc/mcdi.c
@@ -1216,7 +1216,7 @@
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);