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Message-ID: <20241017190845.32832-1-kdipendra88@gmail.com>
Date: Thu, 17 Oct 2024 19:08:44 +0000
From: Dipendra Khadka <kdipendra88@...il.com>
To: Sunil Goutham <sgoutham@...vell.com>,
Geetha sowjanya <gakula@...vell.com>,
Subbaraya Sundeep <sbhatta@...vell.com>,
hariprasad <hkelam@...vell.com>,
Andrew Lunn <andrew+netdev@...n.ch>,
"David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Naveen Mamindlapalli <naveenm@...vell.com>,
Suman Ghosh <sumang@...vell.com>
Cc: Dipendra Khadka <kdipendra88@...il.com>,
horms@...nel.org,
netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v4 3/6] octeontx2-pf: handle otx2_mbox_get_rsp errors in otx2_flows.c
Adding error pointer check after calling otx2_mbox_get_rsp().
Fixes: 9917060fc30a ("octeontx2-pf: Cleanup flow rule management")
Fixes: f0a1913f8a6f ("octeontx2-pf: Add support for ethtool ntuple filters")
Fixes: 674b3e164238 ("octeontx2-pf: Add additional checks while configuring ucast/bcast/mcast rules")
Signed-off-by: Dipendra Khadka <kdipendra88@...il.com>
---
v4:
- removed unnecessary line "allocated = PTR_ERR(rsp);"
v3: https://lore.kernel.org/all/20241006164322.2015-1-kdipendra88@gmail.com/
- Included in the patch set
- Changed patch subject
- Added Fixes: tag
v2: https://lore.kernel.org/all/20240923063323.1935-1-kdipendra88@gmail.com/
- Changed the subject to net
- Changed the typo of the variable from bfvp to pfvf
v1: https://lore.kernel.org/all/20240922185235.50413-1-kdipendra88@gmail.com/
.../net/ethernet/marvell/octeontx2/nic/otx2_flows.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c
index 98c31a16c70b..58720a161ee2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c
@@ -119,6 +119,8 @@ int otx2_alloc_mcam_entries(struct otx2_nic *pfvf, u16 count)
rsp = (struct npc_mcam_alloc_entry_rsp *)otx2_mbox_get_rsp
(&pfvf->mbox.mbox, 0, &req->hdr);
+ if (IS_ERR(rsp))
+ goto exit;
for (ent = 0; ent < rsp->count; ent++)
flow_cfg->flow_ent[ent + allocated] = rsp->entry_list[ent];
@@ -197,6 +199,10 @@ int otx2_mcam_entry_init(struct otx2_nic *pfvf)
rsp = (struct npc_mcam_alloc_entry_rsp *)otx2_mbox_get_rsp
(&pfvf->mbox.mbox, 0, &req->hdr);
+ if (IS_ERR(rsp)) {
+ mutex_unlock(&pfvf->mbox.lock);
+ return PTR_ERR(rsp);
+ }
if (rsp->count != req->count) {
netdev_info(pfvf->netdev,
@@ -232,6 +238,10 @@ int otx2_mcam_entry_init(struct otx2_nic *pfvf)
frsp = (struct npc_get_field_status_rsp *)otx2_mbox_get_rsp
(&pfvf->mbox.mbox, 0, &freq->hdr);
+ if (IS_ERR(frsp)) {
+ mutex_unlock(&pfvf->mbox.lock);
+ return PTR_ERR(frsp);
+ }
if (frsp->enable) {
pfvf->flags |= OTX2_FLAG_RX_VLAN_SUPPORT;
--
2.43.0
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