net: wwan: t7xx: Fix return type of t7xx_dl_add_timedout()

t7xx_dl_add_timedout() now return int 'ret', but the return type
is bool. Change the return type to int for furthor errcode upstream.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/wwan/t7xx/t7xx_dpmaif.c

@@ -1043,15 +1043,13 @@ unsigned int t7xx_dpmaif_dl_dlq_pit_get_wr_idx(struct dpmaif_hw_info *hw_info,
 	return value & DPMAIF_DL_RD_WR_IDX_MSK;
 }
 
-static bool t7xx_dl_add_timedout(struct dpmaif_hw_info *hw_info)
+static int t7xx_dl_add_timedout(struct dpmaif_hw_info *hw_info)
 {
 	u32 value;
-	int ret;
 
-	ret = ioread32_poll_timeout_atomic(hw_info->pcie_base + DPMAIF_DL_BAT_ADD,
+	return ioread32_poll_timeout_atomic(hw_info->pcie_base + DPMAIF_DL_BAT_ADD,
 					   value, !(value & DPMAIF_DL_ADD_NOT_READY), 0,
 					   DPMAIF_CHECK_TIMEOUT_US);
-	return ret;
 }
 
 int t7xx_dpmaif_dl_snd_hw_bat_cnt(struct dpmaif_hw_info *hw_info, unsigned int bat_entry_cnt)