[PATCH v1] drivers/net/ethernet/intel/e100: Check the return value of e100_exec_cmd()

From: Li Zhong
Date: Sun Sep 18 2022 - 18:18:14 EST


Check the return value of e100_exec_cmd(), which could be error when the
command execution fail.

Signed-off-by: Li Zhong <floridsleeves@xxxxxxxxx>
---
drivers/net/ethernet/intel/e100.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index 11a884aa5082..f785dd73d537 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -1903,6 +1903,8 @@ static int e100_alloc_cbs(struct nic *nic)

static inline void e100_start_receiver(struct nic *nic, struct rx *rx)
{
+ int err;
+
if (!nic->rxs) return;
if (RU_SUSPENDED != nic->ru_running) return;

@@ -1911,7 +1913,10 @@ 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);
+ err = e100_exec_cmd(nic, ruc_start, rx->dma_addr);
+ if (err)
+ return;
+
nic->ru_running = RU_RUNNING;
}
}
--
2.25.1