On Thu, Dec 08, 2011 at 09:50:54AM +0300, Dan Carpenter wrote:
> The "if (!p && !p->dev)" condition isn't right because || was intended
> instead of &&. But actually, "p" is the list cursor and so it's always
> non-NULL and we can just remove that bit. We can remove the another
> similar check as well.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: Jerome Glisse <jglisse@xxxxxxxxxx>
>
> diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
> index 6678abc..1cf4c2c 100644
> --- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
> +++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
> @@ -930,10 +930,8 @@ static int ttm_dma_pool_get_num_unused_pages(void)
> unsigned total = 0;
>
> mutex_lock(&_manager->lock);
> - list_for_each_entry(p, &_manager->pools, pools) {
> - if (p)
> - total += p->pool->npages_free;
> - }
> + list_for_each_entry(p, &_manager->pools, pools)
> + total += p->pool->npages_free;
> mutex_unlock(&_manager->lock);
> return total;
> }
> @@ -1023,7 +1021,7 @@ static int ttm_dma_pool_mm_shrink(struct shrinker *shrink,
> list_for_each_entry(p, &_manager->pools, pools) {
> unsigned nr_free;
>
> - if (!p && !p->dev)
> + if (!p->dev)
> continue;
> if (shrink_pages == 0)
> break;
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