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octeontx2-pf: handle otx2_mbox_get_rsp errors in otx2_dcbnl.c

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BugLink: https://bugs.launchpad.net/bugs/2101915

[ Upstream commit 69297b0d3369488af259e3a7cf53d69157938ea1 ]

Add error pointer check after calling otx2_mbox_get_rsp().

Fixes: 8e67558177 ("octeontx2-pf: PFC config support with DCBx")
Signed-off-by: Dipendra Khadka <kdipendra88@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Sasha Levin <sashal@kernel.org>
CVE-2024-56725
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Dipendra Khadka
2025-03-11 08:51:19 +09:00
committed by Stefan Bader
parent 67aa80f8d9
commit 3520159bc8
1 changed files with 5 additions and 0 deletions
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drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c
+5
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@@ -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");