On Fri, Apr 04, 2014 at 12:12:35PM +0100, Damien Lespiau wrote:
> On Thu, Mar 27, 2014 at 06:00:11PM +0000, oscar.ma...@intel.com wrote:
> > +int gen8_switch_context_queue(struct intel_engine *ring,
> > + struct i915_hw_context *to,
> > + u32 tail)
> > +{
> > + struct drm_i915_gem_request *req = NULL;
> > + unsigned long flags;
> > + bool was_empty;
> > +
> > + req = (struct drm_i915_gem_request *)
> > + kmalloc(sizeof(struct drm_i915_gem_request), GFP_KERNEL);
> > + req->ring = ring;
> > + req->ctx = to;
> > + i915_gem_context_reference(req->ctx);
> > + req->tail = tail;
>
> Need to test if the allocation has succeeded and return an error if not.
Also, no need for the cast, kmalloc returns a void *.
We usually use sizeof(*req) to be safe against variables changing type
without updating the allocation size (someont the compiler wouldn't warn
about).
--
Damien
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