4.9-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 3026050179a3a9a6f5c892c414b5e36ecf092081 ]
If skb_pad() fails then it frees skb and we don't need to free it again at the end of the function.
Fixes: dc7bf5d7 ("HSI: Introduce driver for SSI Protocol") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Sebastian Reichel sre@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hsi/clients/ssi_protocol.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/hsi/clients/ssi_protocol.c +++ b/drivers/hsi/clients/ssi_protocol.c @@ -989,7 +989,7 @@ static int ssip_pn_xmit(struct sk_buff * goto drop; /* Pad to 32-bits - FIXME: Revisit*/ if ((skb->len & 3) && skb_pad(skb, 4 - (skb->len & 3))) - goto drop; + goto inc_dropped;
/* * Modem sends Phonet messages over SSI with its own endianess... @@ -1041,8 +1041,9 @@ static int ssip_pn_xmit(struct sk_buff * drop2: hsi_free_msg(msg); drop: - dev->stats.tx_dropped++; dev_kfree_skb(skb); +inc_dropped: + dev->stats.tx_dropped++;
return 0; }