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Message-ID: <1572426765-43211-1-git-send-email-zhongjiang@huawei.com>
Date: Wed, 30 Oct 2019 17:12:45 +0800
From: zhong jiang <zhongjiang@...wei.com>
To: <davem@...emloft.net>
CC: <ecree@...arflare.com>, <mhabets@...arflare.com>,
<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<zhongjiang@...wei.com>
Subject: [PATCH] sfc: should check the return value after allocating memory
kcalloc may fails to allocate memory, hence if it is in that case,
We should drop out in time.
Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
drivers/net/ethernet/sfc/efx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 2fef740..712380a 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -3040,6 +3040,8 @@ static int efx_init_struct(struct efx_nic *efx,
/* Failure to allocate is not fatal, but may degrade ARFS performance */
efx->rps_hash_table = kcalloc(EFX_ARFS_HASH_TABLE_SIZE,
sizeof(*efx->rps_hash_table), GFP_KERNEL);
+ if (!efx->rps_hash_table)
+ goto fail;
#endif
efx->phy_op = &efx_dummy_phy_operations;
efx->mdio.dev = net_dev;
--
1.7.12.4
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