On Wed, Apr 07, 2010 at 09:59:10AM -0400, Jeff Dike wrote:
> vq_memory_access_ok needs to check whether mem == NULL
>
> Signed-off-by: Jeff Dike <[email protected]>
> Signed-off-by: Michael S. Tsirkin <[email protected]>
This was already queued by me, you do not need to
fill Dave's inbox with vhost patches.
> ---
> drivers/vhost/vhost.c | 4 ++++
> 1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 7bd7a1e..b8e1127 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -235,6 +235,10 @@ static int vq_memory_access_ok(void __user *log_base,
> struct vhost_memory *mem,
> int log_all)
> {
> int i;
> +
> + if (!mem)
> + return 0;
> +
> for (i = 0; i < mem->nregions; ++i) {
> struct vhost_memory_region *m = mem->regions + i;
> unsigned long a = m->userspace_addr;
> --
> 1.7.0.2.280.gc6f05
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