diff options
Diffstat (limited to 'drivers/usb/core/devio.c')
| -rw-r--r-- | drivers/usb/core/devio.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 6aac2425dd9f..054eb534c495 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1378,11 +1378,10 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb number_of_packets = uurb->number_of_packets; isofrmlen = sizeof(struct usbdevfs_iso_packet_desc) * number_of_packets; - isopkt = kmalloc(isofrmlen, GFP_KERNEL); - if (!isopkt) - return -ENOMEM; - if (copy_from_user(isopkt, iso_frame_desc, isofrmlen)) { - ret = -EFAULT; + isopkt = memdup_user(iso_frame_desc, isofrmlen); + if (IS_ERR(isopkt)) { + ret = PTR_ERR(isopkt); + isopkt = NULL; goto error; } for (totlen = u = 0; u < number_of_packets; u++) { |