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Date: Tue, 13 Apr 2010 18:01:21 +0300 From: "Michael S. Tsirkin" <mst@...hat.com> To: Jeff Dike <jdike@...toit.com> Cc: Juan Quintela <quintela@...hat.com>, Rusty Russell <rusty@...tcorp.com.au>, "David S. Miller" <davem@...emloft.net>, Laurent Chavey <chavey@...gle.com>, kvm@...r.kernel.org, virtualization@...ts.osdl.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] vhost-net: fix vq_memory_access_ok error checking 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 <jdike@...ux.intel.com> > Signed-off-by: Michael S. Tsirkin <mst@...hat.com> 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 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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