Hello. On 02/28/2016 06:35 PM, Michael S. Tsirkin wrote:
Calling return copy_to_user(...) or return copy_from_user in an ioctl
Calling return? Perhaps "returning the result of"?
will not do the right thing if there's a pagefault: copy_to_user/copy_from_user return the number of bytes not copied in this case. Fix up kvm on mips to do return copy_to_user(...)) ? -EFAULT : 0; and return copy_from_user(...)) ? -EFAULT : 0; everywhere. Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
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