[PATCH AUTOSEL 5.11 24/61] net: wan: fix error return code of uhdlc_init()
From: Sasha Levin <sashal@kernel.org>
Date: 2021-03-17 00:57:37
Also in:
linuxppc-dev, lkml, netdev
Subsystem:
freescale quicc engine ucc hdlc driver, networking drivers, the rest · Maintainers:
Zhao Qiang, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Jia-Ju Bai <redacted> [ Upstream commit 62765d39553cfd1ad340124fe1e280450e8c89e2 ] 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 <redacted> Signed-off-by: Jia-Ju Bai <redacted> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/wan/fsl_ucc_hdlc.c | 8 ++++++-- 1 file 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;
--
2.30.1