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path: root/drivers/usb/gadget/inode.c
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Diffstat (limited to 'drivers/usb/gadget/inode.c')
-rw-r--r--drivers/usb/gadget/inode.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index b94c049ab0d0..b5be6f0308c2 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -439,11 +439,9 @@ ep_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
/* FIXME writebehind for O_NONBLOCK and poll(), qlen = 1 */
value = -ENOMEM;
- kbuf = kmalloc (len, GFP_KERNEL);
- if (!kbuf)
- goto free1;
- if (copy_from_user (kbuf, buf, len)) {
- value = -EFAULT;
+ kbuf = memdup_user(buf, len);
+ if (!kbuf) {
+ value = PTR_ERR(kbuf);
goto free1;
}
@@ -452,7 +450,6 @@ ep_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
data->name, len, (int) value);
free1:
mutex_unlock(&data->lock);
- kfree (kbuf);
return value;
}