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net: stmmac: fix possible memory leak in stmmac_dvr_probe()

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[ Upstream commit a137f3f27f ]

The bitmap_free() should be called to free priv->af_xdp_zc_qps
when create_singlethread_workqueue() fails, otherwise there will
be a memory leak, so we add the err path error_wq_init to fix it.

Fixes: bba2556efa ("net: stmmac: Enable RX via AF_XDP zero-copy")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Gaosheng Cui 2022-12-07 16:34:13 +08:00 committed by Greg Kroah-Hartman
parent bfbc4f7f82
commit 446757787b
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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@ -7097,7 +7097,7 @@ int stmmac_dvr_probe(struct device *device,
priv->wq = create_singlethread_workqueue("stmmac_wq");
if (!priv->wq) {
dev_err(priv->device, "failed to create workqueue\n");
return -ENOMEM;
goto error_wq_init;
}
INIT_WORK(&priv->service_task, stmmac_service_task);
@ -7325,6 +7325,7 @@ int stmmac_dvr_probe(struct device *device,
stmmac_napi_del(ndev);
error_hw_init:
destroy_workqueue(priv->wq);
error_wq_init:
bitmap_free(priv->af_xdp_zc_qps);
return ret;