From: Jiri Pinkava <jiri.pinkava@xxxxxxxx>
CRC should be calculated for Ethernet frame, not for whole recievede EEM data.
This bug shows rarely, because in many times len == skb->len.
Signed-off-by: Jiri Pinkava <jiri.pinkava@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/gadget/f_eem.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c
index 38226e9..95dd466 100644
--- a/drivers/usb/gadget/f_eem.c
+++ b/drivers/usb/gadget/f_eem.c
@@ -469,8 +469,7 @@ static int eem_unwrap(struct gether *port,
crc = get_unaligned_le32(skb->data + len
- ETH_FCS_LEN);
crc2 = ~crc32_le(~0,
- skb->data,
- skb->len - ETH_FCS_LEN);
+ skb->data, len - ETH_FCS_LEN);
} else {
crc = get_unaligned_be32(skb->data + len
- ETH_FCS_LEN);
--
1.7.1
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