Merge branch 'for-4.2-misc' into k.o/for-4.2

drivers/infiniband/hw/mthca/mthca_profile.c

···
 	u64 mem_base, mem_avail;
 	s64 total_size = 0;
 	struct mthca_resource *profile;
-	struct mthca_resource tmp;
 	int i, j;
 
 	profile = kzalloc(MTHCA_RES_NUM * sizeof *profile, GFP_KERNEL);
···
 	 */
 	for (i = MTHCA_RES_NUM; i > 0; --i)
 		for (j = 1; j < i; ++j) {
-			if (profile[j].size > profile[j - 1].size) {
-				tmp            = profile[j];
-				profile[j]     = profile[j - 1];
-				profile[j - 1] = tmp;
-			}
+			if (profile[j].size > profile[j - 1].size)
+				swap(profile[j], profile[j - 1]);
 		}
 
 	for (i = 0; i < MTHCA_RES_NUM; ++i) {

drivers/infiniband/hw/ocrdma/ocrdma_verbs.c

···
 		ocrdma_release_ucontext_pd(uctx);
 	} else {
 		status = _ocrdma_dealloc_pd(dev, pd);
-		kfree(pd);
 	}
 exit:
 	return ERR_PTR(status);

drivers/infiniband/hw/usnic/usnic_uiom.c

···
 		return ERR_PTR(-ENOMEM);
 
 	pd->domain = domain = iommu_domain_alloc(&pci_bus_type);
-	if (IS_ERR_OR_NULL(domain)) {
-		usnic_err("Failed to allocate IOMMU domain with err %ld\n",
-				PTR_ERR(pd->domain));
+	if (!domain) {
+		usnic_err("Failed to allocate IOMMU domain");
 		kfree(pd);
-		return ERR_PTR(domain ? PTR_ERR(domain) : -ENOMEM);
+		return ERR_PTR(-ENOMEM);
 	}
 
 	iommu_set_fault_handler(pd->domain, usnic_uiom_dma_fault, NULL);