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usb: gadget: function: f_rndis: socket buffer may be NULL

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In eth_start_xmit, the socket buffer may be NULL. So, add NULL pointer
check at .wrap API.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Peter Chen 2016-08-11 15:51:46 +08:00 committed by Felipe Balbi
parent 70237dc8ef
commit 80d1642d76
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/gadget/function/f_rndis.c
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@ -374,6 +374,9 @@ static struct sk_buff *rndis_add_header(struct gether *port,
{
struct sk_buff *skb2;
if (!skb)
return NULL;
skb2 = skb_realloc_headroom(skb, sizeof(struct rndis_packet_msg_type));
rndis_add_hdr(skb2);