diff options
| -rw-r--r-- | drivers/usb/gadget/inode.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index de8a83803505..63fc171c0ed9 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -1867,13 +1867,9 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) buf += 4; length -= 4; - kbuf = kmalloc (length, GFP_KERNEL); - if (!kbuf) - return -ENOMEM; - if (copy_from_user (kbuf, buf, length)) { - kfree (kbuf); - return -EFAULT; - } + kbuf = memdup_user(buf, length); + if (IS_ERR(kbuf)) + return PTR_ERR(kbuf); spin_lock_irq (&dev->lock); value = -EINVAL; |