diff mbox series

[v2,net] net: Add error pointer check in otx2_flows.c

Message ID 20240923063323.1935-1-kdipendra88@gmail.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series [v2,net] net: Add error pointer check in otx2_flows.c | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present fail Series targets non-next tree, but doesn't contain any Fixes tags
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 7 this patch: 7
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 8 of 8 maintainers
netdev/build_clang success Errors and warnings before: 16 this patch: 16
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 16 this patch: 16
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 33 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-09-26--21-00 (tests: 768)

Commit Message

Dipendra Khadka Sept. 23, 2024, 6:33 a.m. UTC
Adding error pointer check after calling otx2_mbox_get_rsp().

Signed-off-by: Dipendra Khadka <kdipendra88@gmail.com>
---
v2:
 - Changed the subject to net
 - Changed the typo of the vairable from bfvp to pfvf
v1: https://lore.kernel.org/all/20240922185235.50413-1-kdipendra88@gmail.com/
 .../ethernet/marvell/octeontx2/nic/otx2_flows.c   | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

Comments

Paolo Abeni Oct. 1, 2024, 8:38 a.m. UTC | #1
Hi,

On 9/23/24 08:33, Dipendra Khadka wrote:
> Adding error pointer check after calling otx2_mbox_get_rsp().
> 
> Signed-off-by: Dipendra Khadka <kdipendra88@gmail.com>

The commit message should include a 'Fixes' tag pointing to the commit 
introducing the issue.

Also please include some actual wording in the commit message itself 
describing the issue and the fix.

As Simon noted on the previous submission, please read carefully the 
process description under:

https://www.kernel.org/doc/html/latest/process/

and especially:

https://www.kernel.org/doc/html/latest/process/maintainer-netdev.html

Thanks,

Paolo
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c
index 98c31a16c70b..8a67c124b524 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c
@@ -120,6 +120,11 @@  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)) {
+			mutex_unlock(&pfvf->mbox.lock);
+			return PTR_ERR(rsp);
+		}
+
 		for (ent = 0; ent < rsp->count; ent++)
 			flow_cfg->flow_ent[ent + allocated] = rsp->entry_list[ent];
 
@@ -198,6 +203,11 @@  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,
 			    "Unable to allocate MCAM entries for ucast, vlan and vf_vlan\n");
@@ -233,6 +243,11 @@  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;
 		pfvf->flags |= OTX2_FLAG_VF_VLAN_SUPPORT;