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net: qlogic: check the return value of dma_alloc_coherent() in qed_vf_hw_prepare()

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[ Upstream commit e0058f0fa80f6e09c4d363779c241c45a3c56b94 ]

The function dma_alloc_coherent() in qed_vf_hw_prepare() can fail, so
its return value should be checked.

Fixes: 1408cc1fa48c ("qed: Introduce VFs")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jia-Ju Bai 2022-03-05 01:14:11 -08:00 committed by Greg Kroah-Hartman
parent 33c74f8085
commit 16386479ef
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/qlogic/qed/qed_vf.c
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@ -513,6 +513,9 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
p_iov->bulletin.size,
&p_iov->bulletin.phys,
GFP_KERNEL);
if (!p_iov->bulletin.p_virt)
goto free_pf2vf_reply;
DP_VERBOSE(p_hwfn, QED_MSG_IOV,
"VF's bulletin Board [%p virt 0x%llx phys 0x%08x bytes]\n",
p_iov->bulletin.p_virt,
@ -552,6 +555,10 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
return rc;
free_pf2vf_reply:
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
sizeof(union pfvf_tlvs),
p_iov->pf2vf_reply, p_iov->pf2vf_reply_phys);
free_vf2pf_request:
dma_free_coherent(&p_hwfn->cdev->pdev->dev,
sizeof(union vfpf_tlvs),