On Wed, 04 Apr 2018, Xidong Wang <wangxidong...@163.com> wrote: > In eb_lookup_vmas(), lut, the return value of kmem_cache_alloc(), is freed > with kfree().I think the expected paired function is kmem_cache_free().
Agreed. But did you try to compile your patch before sending? Fixes: d1b48c1e7184 ("drm/i915: Replace execbuf vma ht with an idr") Cc: Chris Wilson <ch...@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com> Cc: <sta...@vger.kernel.org> # v4.14+ BR, Jani. > > Signed-off-by: Xidong Wang <wangxidong...@163.com> > --- > drivers/gpu/drm/i915/i915_gem_execbuffer.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c > b/drivers/gpu/drm/i915/i915_gem_execbuffer.c > index 8c170db..08fe476 100644 > --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c > +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c > @@ -728,7 +728,7 @@ static int eb_lookup_vmas(struct i915_execbuffer *eb) > > err = radix_tree_insert(handles_vma, handle, vma); > if (unlikely(err)) { > - kfree(lut); > + kmem_cache_free(lut); > goto err_obj; > } -- Jani Nikula, Intel Open Source Technology Center