qcacmn: Fix mem leak of datapath tx ring

when allocation for destination ring fails in ce_init function,
Clean up the complete datapath tx ring.

Change-Id: I7e46396f7a1903207768c79cd07e2dbda1e5a7d2
CRs-Fixed: 2028641

hif/src/ce/ce_diag.c

@@ -242,14 +242,18 @@ QDF_STATUS hif_diag_read_mem(struct hif_opaque_softc *hif_ctx,
 				goto done;
 		}
 
-		if (Q_TARGET_ACCESS_BEGIN(scn) < 0)
-			return QDF_STATUS_E_FAILURE;
+		if (Q_TARGET_ACCESS_BEGIN(scn) < 0) {
+			status = QDF_STATUS_E_FAILURE;
+			goto done;
+		}
 
 		/* convert soc virtual address to physical address */
 		ce_phy_addr = get_ce_phy_addr(scn, address, target_type);
 
-		if (Q_TARGET_ACCESS_END(scn) < 0)
-			return QDF_STATUS_E_FAILURE;
+		if (Q_TARGET_ACCESS_END(scn) < 0) {
+			status = QDF_STATUS_E_FAILURE;
+			goto done;
+		}
 
 		/* Request CE to send from Target(!)
 		 * address to Host buffer */
@@ -402,14 +406,18 @@ QDF_STATUS hif_diag_write_mem(struct hif_opaque_softc *hif_ctx,
 
 	target_type = (hif_get_target_info_handle(hif_ctx))->target_type;
 
-	if (Q_TARGET_ACCESS_BEGIN(scn) < 0)
-		return QDF_STATUS_E_FAILURE;
+	if (Q_TARGET_ACCESS_BEGIN(scn) < 0) {
+		status = QDF_STATUS_E_FAILURE;
+		goto done;
+	}
 
 	/* convert soc virtual address to physical address */
 	ce_phy_addr = get_ce_phy_addr(scn, address, target_type);
 
-	if (Q_TARGET_ACCESS_END(scn) < 0)
-		return QDF_STATUS_E_FAILURE;
+	if (Q_TARGET_ACCESS_END(scn) < 0) {
+		status = QDF_STATUS_E_FAILURE;
+		goto done;
+	}
 
 	remaining_bytes = orig_nbytes;
 	CE_data = CE_data_base;

hif/src/ce/ce_main.c

@@ -1003,17 +1003,7 @@ struct CE_handle *ce_init(struct hif_softc *scn,
 				 */
 				HIF_ERROR("%s: dest ring has no mem",
 					  __func__);
-				if (malloc_src_ring) {
-					qdf_mem_free(CE_state->src_ring);
-					CE_state->src_ring = NULL;
-					malloc_src_ring = false;
-				}
-				if (malloc_CE_state) {
-					/* allocated CE_state locally */
-					qdf_mem_free(CE_state);
-					malloc_CE_state = false;
-				}
-				return NULL;
+				goto error_no_dma_mem;
 			}
 
 			if (Q_TARGET_ACCESS_BEGIN(scn) < 0)