> On 23 Jun 2015, at 16:51, Dan Carpenter <dan.carpen...@oracle.com> wrote:
>
> On Tue, Jun 23, 2015 at 03:42:30PM +0300, Dmitry Kalinkin wrote:
>> @@ -178,38 +167,24 @@ static ssize_t buffer_to_user(unsigned int minor, char
>> __user *buf,
>> size_t count, loff_t *ppos)
>> {
>> void *image_ptr;
>> - ssize_t retval;
>>
>> image_ptr = image[minor].kern_buf + *ppos;
>> + if (__copy_to_user(buf, image_ptr, (unsigned long)count))
>> + return -EINVAL;
>
> s/EINVAL/EFAULT/
Right. Will fix in v2.
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