diff options
| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2021-03-07 12:12:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-08 22:56:40 +0300 |
| commit | 62765d39553cfd1ad340124fe1e280450e8c89e2 (patch) | |
| tree | c94b7c77cecc7e0300a9a5bb0f26fc717e609b00 | |
| parent | 143c253f42bad20357e7e4432087aca747c43384 (diff) | |
| download | linux-62765d39553cfd1ad340124fe1e280450e8c89e2.tar.xz | |
net: wan: fix error return code of uhdlc_init()
When priv->rx_skbuff or priv->tx_skbuff is NULL, no error return code of
uhdlc_init() is assigned.
To fix this bug, ret is assigned with -ENOMEM in these cases.
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>
| -rw-r--r-- | drivers/net/wan/fsl_ucc_hdlc.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c index dca97cd7c4e7..7eac6a3e1cde 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.c +++ b/drivers/net/wan/fsl_ucc_hdlc.c @@ -204,14 +204,18 @@ static int uhdlc_init(struct ucc_hdlc_private *priv) priv->rx_skbuff = kcalloc(priv->rx_ring_size, sizeof(*priv->rx_skbuff), GFP_KERNEL); - if (!priv->rx_skbuff) + if (!priv->rx_skbuff) { + ret = -ENOMEM; goto free_ucc_pram; + } priv->tx_skbuff = kcalloc(priv->tx_ring_size, sizeof(*priv->tx_skbuff), GFP_KERNEL); - if (!priv->tx_skbuff) + if (!priv->tx_skbuff) { + ret = -ENOMEM; goto free_rx_skbuff; + } priv->skb_curtx = 0; priv->skb_dirtytx = 0; |