Re: [PATCH 2/3] block: sed-opal: ioctl for writing to shadow mbr
From: Christoph Hellwig <hch@infradead.org>
Date: 2019-05-01 13:48:38
Also in:
lkml
+ if (!access_ok((void __user *)(uintptr_t)info->data, info->size)) + return -EFAULT;
Just let the copy_from_user itself return the error itself.