diff options
Diffstat (limited to 'drivers/isdn/i4l/isdn_ppp.c')
| -rw-r--r-- | drivers/isdn/i4l/isdn_ppp.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c index f37b8f6..fe824e0 100644 --- a/drivers/isdn/i4l/isdn_ppp.c +++ b/drivers/isdn/i4l/isdn_ppp.c @@ -449,14 +449,9 @@ static int get_filter(void __user *arg, struct sock_filter **p) /* uprog.len is unsigned short, so no overflow here */ len = uprog.len * sizeof(struct sock_filter); - code = kmalloc(len, GFP_KERNEL); - if (code == NULL) - return -ENOMEM; - - if (copy_from_user(code, uprog.filter, len)) { - kfree(code); - return -EFAULT; - } + code = memdup_user(uprog.filter, len); + if (IS_ERR(code)) + return PTR_ERR(code); err = sk_chk_filter(code, uprog.len); if (err) { @@ -482,7 +477,7 @@ isdn_ppp_ioctl(int min, struct file *file, unsigned int cmd, unsigned long arg) struct isdn_ppp_comp_data data; void __user *argp = (void __user *)arg; - is = (struct ippp_struct *) file->private_data; + is = file->private_data; lp = is->lp; if (is->debug & 0x1) |
