wilc1000: remove redundant code

Some of the code is redundant, so goto statements are used to remove them
Signed-off-by: wengjianfeng <wengjianfeng@yulong.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210705023731.31496-1-samirweng1979@163.com

drivers/net/wireless/microchip/wilc1000/wlan.c

@@ -1127,27 +1127,22 @@ int wilc_wlan_start(struct wilc *wilc)
 	}
 	acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY);
 	ret = wilc->hif_func->hif_write_reg(wilc, WILC_VMM_CORE_CFG, reg);
-	if (ret) {
-		release_bus(wilc, WILC_BUS_RELEASE_ONLY);
-		return ret;
-	}
+	if (ret)
+		goto release;
+
 	reg = 0;
 	if (wilc->io_type == WILC_HIF_SDIO && wilc->dev_irq_num)
 		reg |= WILC_HAVE_SDIO_IRQ_GPIO;
 
 	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_1, reg);
-	if (ret) {
-		release_bus(wilc, WILC_BUS_RELEASE_ONLY);
-		return ret;
-	}
+	if (ret)
+		goto release;
 
 	wilc->hif_func->hif_sync_ext(wilc, NUM_INT_EXT);
 
 	ret = wilc->hif_func->hif_read_reg(wilc, WILC_CHIPID, &chipid);
-	if (ret) {
-		release_bus(wilc, WILC_BUS_RELEASE_ONLY);
-		return ret;
-	}
+	if (ret)
+		goto release;
 
 	wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, &reg);
 	if ((reg & BIT(10)) == BIT(10)) {
@@ -1159,8 +1154,9 @@ int wilc_wlan_start(struct wilc *wilc)
 	reg |= BIT(10);
 	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, reg);
 	wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, &reg);
-	release_bus(wilc, WILC_BUS_RELEASE_ONLY);
 
+release:
+	release_bus(wilc, WILC_BUS_RELEASE_ONLY);
 	return ret;
 }
 
@@ -1174,36 +1170,34 @@ int wilc_wlan_stop(struct wilc *wilc, struct wilc_vif *vif)
 	ret = wilc->hif_func->hif_read_reg(wilc, WILC_GP_REG_0, &reg);
 	if (ret) {
 		netdev_err(vif->ndev, "Error while reading reg\n");
-		release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
-		return ret;
+		goto release;
 	}
 
 	ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_0,
 					(reg | WILC_ABORT_REQ_BIT));
 	if (ret) {
 		netdev_err(vif->ndev, "Error while writing reg\n");
-		release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
-		return ret;
+		goto release;
 	}
 
 	ret = wilc->hif_func->hif_read_reg(wilc, WILC_FW_HOST_COMM, &reg);
 	if (ret) {
 		netdev_err(vif->ndev, "Error while reading reg\n");
-		release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
-		return ret;
+		goto release;
 	}
 	reg = BIT(0);
 
 	ret = wilc->hif_func->hif_write_reg(wilc, WILC_FW_HOST_COMM, reg);
 	if (ret) {
 		netdev_err(vif->ndev, "Error while writing reg\n");
-		release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
-		return ret;
+		goto release;
 	}
 
+	ret = 0;
+release:
 	release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
 
-	return 0;
+	return ret;
 }
 
 void wilc_wlan_cleanup(struct net_device *dev)