From: Jia-Ju Bai <baijiaju1990@gmail.com>
To: aelior@marvell.com, manishc@marvell.com, davem@davemloft.net,
kuba@kernel.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Jia-Ju Bai <baijiaju1990@gmail.com>
Subject: [PATCH] net: qlogic: check the return value of dma_alloc_coherent() in qed_vf_hw_prepare()
Date: Wed, 2 Mar 2022 19:34:50 -0800 [thread overview]
Message-ID: <20220303033450.2108-1-baijiaju1990@gmail.com> (raw)
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>
---
drivers/net/ethernet/qlogic/qed/qed_vf.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c
index 597cd9cd57b5..5786d7ab6310 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_vf.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c
@@ -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_vf2pf_request;
+
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,
--
2.17.1
next reply other threads:[~2022-03-03 3:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-03 3:34 Jia-Ju Bai [this message]
2022-03-04 5:19 ` Jakub Kicinski
2022-03-05 8:37 ` Jia-Ju Bai
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