On Fri, 6 Apr 2012 14:17:41 -0400, Xi Wang <xi.wang at gmail.com> wrote: > On Apr 6, 2012, at 10:44 AM, Chris Wilson wrote: > > > That I agreed with, I just disagree with how you chose to handle it. > > Rather than continue on and attempt to vmalloc a large array we should > > just fail the ioctl with EINVAL. > > Why an attempt to vmalloc? The overflow check in drm_malloc_ab() > will simply return NULL and fail the ioctl with -ENOMEM.
It's an invalid value for the ioctl and should be treated as such, not making ENOMEM more ambiguous. -Chris -- Chris Wilson, Intel Open Source Technology Centre