diff options
| -rw-r--r-- | drivers/usb/gadget/function/f_fs.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 10a5d9f0f2b9..bf109191659a 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -3827,14 +3827,9 @@ static char *ffs_prepare_buffer(const char __user *buf, size_t len) if (!len) return NULL; - data = kmalloc(len, GFP_KERNEL); - if (!data) - return ERR_PTR(-ENOMEM); - - if (copy_from_user(data, buf, len)) { - kfree(data); - return ERR_PTR(-EFAULT); - } + data = memdup_user(buf, len); + if (IS_ERR(data)) + return ERR_PTR(PTR_ERR(data)); pr_vdebug("Buffer from user space:\n"); ffs_dump_mem("", data, len); |