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usb: gadget: function: f_rndis: socket buffer may be NULL
author
Peter Chen
<peter.chen@nxp.com>
Thu, 11 Aug 2016 07:51:46 +0000
(15:51 +0800)
committer
Felipe Balbi
<felipe.balbi@linux.intel.com>
Mon, 22 Aug 2016 07:45:12 +0000
(10:45 +0300)
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>
drivers/usb/gadget/function/f_rndis.c
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diff --git
a/drivers/usb/gadget/function/f_rndis.c
b/drivers/usb/gadget/function/f_rndis.c
index
c800582
..
16562e4
100644
(file)
--- a/
drivers/usb/gadget/function/f_rndis.c
+++ b/
drivers/usb/gadget/function/f_rndis.c
@@
-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);