diff options
Diffstat (limited to 'drivers/usb/net/net1080.c')
| -rw-r--r-- | drivers/usb/net/net1080.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/usb/net/net1080.c b/drivers/usb/net/net1080.c index a9b6eeac3e3f..301baa72bac7 100644 --- a/drivers/usb/net/net1080.c +++ b/drivers/usb/net/net1080.c | |||
| @@ -498,25 +498,24 @@ static int net1080_rx_fixup(struct usbnet *dev, struct sk_buff *skb) | |||
| 498 | static struct sk_buff * | 498 | static struct sk_buff * |
| 499 | net1080_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) | 499 | net1080_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) |
| 500 | { | 500 | { |
| 501 | int padlen; | ||
| 502 | struct sk_buff *skb2; | 501 | struct sk_buff *skb2; |
| 503 | struct nc_header *header = NULL; | 502 | struct nc_header *header = NULL; |
| 504 | struct nc_trailer *trailer = NULL; | 503 | struct nc_trailer *trailer = NULL; |
| 504 | int padlen = sizeof (struct nc_trailer); | ||
| 505 | int len = skb->len; | 505 | int len = skb->len; |
| 506 | 506 | ||
| 507 | padlen = ((len + sizeof (struct nc_header) | 507 | if (!((len + padlen + sizeof (struct nc_header)) & 0x01)) |
| 508 | + sizeof (struct nc_trailer)) & 0x01) ? 0 : 1; | 508 | padlen++; |
| 509 | if (!skb_cloned(skb)) { | 509 | if (!skb_cloned(skb)) { |
| 510 | int headroom = skb_headroom(skb); | 510 | int headroom = skb_headroom(skb); |
| 511 | int tailroom = skb_tailroom(skb); | 511 | int tailroom = skb_tailroom(skb); |
| 512 | 512 | ||
| 513 | if ((padlen + sizeof (struct nc_trailer)) <= tailroom | 513 | if (padlen <= tailroom && |
| 514 | && sizeof (struct nc_header) <= headroom) | 514 | sizeof(struct nc_header) <= headroom) |
| 515 | /* There's enough head and tail room */ | 515 | /* There's enough head and tail room */ |
| 516 | goto encapsulate; | 516 | goto encapsulate; |
| 517 | 517 | ||
| 518 | if ((sizeof (struct nc_header) + padlen | 518 | if ((sizeof (struct nc_header) + padlen) < |
| 519 | + sizeof (struct nc_trailer)) < | ||
| 520 | (headroom + tailroom)) { | 519 | (headroom + tailroom)) { |
| 521 | /* There's enough total room, so just readjust */ | 520 | /* There's enough total room, so just readjust */ |
| 522 | skb->data = memmove(skb->head | 521 | skb->data = memmove(skb->head |
| @@ -530,7 +529,7 @@ net1080_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) | |||
| 530 | /* Create a new skb to use with the correct size */ | 529 | /* Create a new skb to use with the correct size */ |
| 531 | skb2 = skb_copy_expand(skb, | 530 | skb2 = skb_copy_expand(skb, |
| 532 | sizeof (struct nc_header), | 531 | sizeof (struct nc_header), |
| 533 | sizeof (struct nc_trailer) + padlen, | 532 | padlen, |
| 534 | flags); | 533 | flags); |
| 535 | dev_kfree_skb_any(skb); | 534 | dev_kfree_skb_any(skb); |
| 536 | if (!skb2) | 535 | if (!skb2) |
