scsi: ufs: ufs-qcom: Check return value of phy_set_mode_ext()

In ufs_qcom_power_up_sequence(), check return value of phy_set_mode_ext()
and stop proceeding if phy_set_mode_ext() fails.
Reviewed-by: Nitin Rawat <quic_nitirawa@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Can Guo <quic_cang@quicinc.com>
Link: https://lore.kernel.org/r/1701520577-31163-8-git-send-email-quic_cang@quicinc.com
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/ufs/host/ufs-qcom.c

@@ -475,7 +475,9 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
 		return ret;
 	}
 
-	phy_set_mode_ext(phy, mode, host->phy_gear);
+	ret = phy_set_mode_ext(phy, mode, host->phy_gear);
+	if (ret)
+		goto out_disable_phy;
 
 	/* power on phy - start serdes and phy's power and clocks */
 	ret = phy_power_on(phy);