6.6-stable review patch. If anyone has any objections, please let me know.
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From: Dipendra Khadka kdipendra88@gmail.com
[ Upstream commit 69297b0d3369488af259e3a7cf53d69157938ea1 ]
Add error pointer check after calling otx2_mbox_get_rsp().
Fixes: 8e67558177f8 ("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 --- 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 aa01110f04a33..294fba58b6709 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");