diff options
| -rw-r--r-- | drivers/net/wan/farsync.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c index e087b9a6daa..43b77271532 100644 --- a/drivers/net/wan/farsync.c +++ b/drivers/net/wan/farsync.c @@ -2038,16 +2038,10 @@ fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /* Now copy the data to the card. */ - buf = kmalloc(wrthdr.size, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (copy_from_user(buf, - ifr->ifr_data + sizeof (struct fstioc_write), - wrthdr.size)) { - kfree(buf); - return -EFAULT; - } + buf = memdup_user(ifr->ifr_data + sizeof(struct fstioc_write), + wrthdr.size); + if (IS_ERR(buf)) + return PTR_ERR(buf); memcpy_toio(card->mem + wrthdr.offset, buf, wrthdr.size); kfree(buf); |