[PATCH v2] drivers/net/ethernet/intel/e100: check the return value of e100_exec_cmd()

[Li Zhong]

Check the return value of e100_exec_cmd() which could return error code
when execution fails.

Signed-off-by: Li Zhong <floridsleeves@xxxxxxxxx>
---
 drivers/net/ethernet/intel/e100.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index 11a884aa5082..0d133cd4d01b 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -1911,7 +1911,9 @@ static inline void e100_start_receiver(struct nic *nic, struct rx *rx)
 
 	/* (Re)start RU if suspended or idle and RFA is non-NULL */
 	if (rx->skb) {
-		e100_exec_cmd(nic, ruc_start, rx->dma_addr);
+		if (e100_exec_cmd(nic, ruc_start, rx->dma_addr))
+			netif_printk(nic, tx_err, KERN_DEBUG, nic->netdev,
+			     "exec ruc_start failed\n");
 		nic->ru_running = RU_RUNNING;
 	}
 }
-- 
2.25.1