i40iw: Simplify code

Axe a few lines of code and re-use existing error handling path to avoid
code duplication.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/i40iw/i40iw_pble.c

@@ -269,19 +269,16 @@ static enum i40iw_status_code add_bp_pages(struct i40iw_sc_dev *dev,
 	status = i40iw_add_sd_table_entry(dev->hw, hmc_info,
 					  info->idx.sd_idx, I40IW_SD_TYPE_PAGED,
 					  I40IW_HMC_DIRECT_BP_SIZE);
-	if (status) {
-		i40iw_free_vmalloc_mem(dev->hw, chunk);
-		return status;
-	}
+	if (status)
+		goto error;
 	if (!dev->is_pf) {
 		status = i40iw_vchnl_vf_add_hmc_objs(dev, I40IW_HMC_IW_PBLE,
 						     fpm_to_idx(pble_rsrc,
 								pble_rsrc->next_fpm_addr),
 						     (info->pages << PBLE_512_SHIFT));
 		if (status) {
 			i40iw_pr_err("allocate PBLEs in the PF.  Error %i\n", status);
-			i40iw_free_vmalloc_mem(dev->hw, chunk);
-			return status;
+			goto error;
 		}
 	}
 	addr = chunk->vaddr;