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Message-ID: <20241006164703.2177-1-kdipendra88@gmail.com>
Date: Sun, 6 Oct 2024 16:47:02 +0000
From: Dipendra Khadka <kdipendra88@...il.com>
To: sgoutham@...vell.com,
gakula@...vell.com,
sbhatta@...vell.com,
hkelam@...vell.com,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com
Cc: Dipendra Khadka <kdipendra88@...il.com>,
maxime.chevallier@...tlin.com,
horms@...nel.org,
netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH net v3 6/6] octeontx2-pf: handle otx2_mbox_get_rsp errors in otx2_dcbnl.c
Add error pointer check after calling otx2_mbox_get_rsp().
Fixes: 8e675581("octeontx2-pf: PFC config support with DCBx")
Signed-off-by: Dipendra Khadka <kdipendra88@...il.com>
---
drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c
index aa01110f04a3..294fba58b670 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c
@@ -315,6 +315,11 @@ int otx2_config_priority_flow_ctrl(struct otx2_nic *pfvf)
if (!otx2_sync_mbox_msg(&pfvf->mbox)) {
rsp = (struct cgx_pfc_rsp *)
otx2_mbox_get_rsp(&pfvf->mbox.mbox, 0, &req->hdr);
+ if (IS_ERR(rsp)) {
+ err = PTR_ERR(rsp);
+ goto unlock;
+ }
+
if (req->rx_pause != rsp->rx_pause || req->tx_pause != rsp->tx_pause) {
dev_warn(pfvf->dev,
"Failed to config PFC\n");
--
2.43.0
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