diff --git a/drivers/pci/host/pci-dra7xx.c b/drivers/pci/host/pci-dra7xx.c
index 9595fad..811f0f9 100644
--- a/drivers/pci/host/pci-dra7xx.c
+++ b/drivers/pci/host/pci-dra7xx.c
@@ -127,9 +127,10 @@ static void dra7xx_pcie_enable_interrupts(struct dra7xx_pcie *dra7xx)
 				   LEG_EP_INTERRUPTS);
 }
 
-static void dra7xx_pcie_host_init(struct pcie_port *pp)
+static int dra7xx_pcie_host_init(struct pcie_port *pp)
 {
 	struct dra7xx_pcie *dra7xx = to_dra7xx_pcie(pp);
+	int ret;
 
 	pp->io_base &= DRA7XX_CPU_TO_BUS_ADDR;
 	pp->mem_base &= DRA7XX_CPU_TO_BUS_ADDR;
@@ -138,10 +139,15 @@ static void dra7xx_pcie_host_init(struct pcie_port *pp)
 
 	dw_pcie_setup_rc(pp);
 
-	dra7xx_pcie_establish_link(dra7xx);
+	ret = dra7xx_pcie_establish_link(dra7xx);
+	if (ret < 0)
+		return ret;
+
 	if (IS_ENABLED(CONFIG_PCI_MSI))
 		dw_pcie_msi_init(pp);
 	dra7xx_pcie_enable_interrupts(dra7xx);
+
+	return 0;
 }
 
 static struct pcie_host_ops dra7xx_pcie_host_ops = {
diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index f1c544b..c116fd9 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -458,12 +458,18 @@ static int exynos_pcie_link_up(struct pcie_port *pp)
 	return 0;
 }
 
-static void exynos_pcie_host_init(struct pcie_port *pp)
+static int exynos_pcie_host_init(struct pcie_port *pp)
 {
 	struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+	int ret;
+
+	ret = exynos_pcie_establish_link(exynos_pcie);
+	if (ret < 0)
+		return ret;
 
-	exynos_pcie_establish_link(exynos_pcie);
 	exynos_pcie_enable_interrupts(exynos_pcie);
+
+	return 0;
 }
 
 static struct pcie_host_ops exynos_pcie_host_ops = {
diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index c8cefb0..1251e92 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -550,18 +550,24 @@ static int imx6_pcie_establish_link(struct imx6_pcie *imx6_pcie)
 	return ret;
 }
 
-static void imx6_pcie_host_init(struct pcie_port *pp)
+static int imx6_pcie_host_init(struct pcie_port *pp)
 {
 	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp);
+	int ret;
 
 	imx6_pcie_assert_core_reset(imx6_pcie);
 	imx6_pcie_init_phy(imx6_pcie);
 	imx6_pcie_deassert_core_reset(imx6_pcie);
 	dw_pcie_setup_rc(pp);
-	imx6_pcie_establish_link(imx6_pcie);
+	ret = imx6_pcie_establish_link(imx6_pcie);
+
+	if (ret < 0)
+		return ret;
 
 	if (IS_ENABLED(CONFIG_PCI_MSI))
 		dw_pcie_msi_init(pp);
+
+	return 0;
 }
 
 static int imx6_pcie_link_up(struct pcie_port *pp)
diff --git a/drivers/pci/host/pci-keystone.c b/drivers/pci/host/pci-keystone.c
index 043c19a..4067a75 100644
--- a/drivers/pci/host/pci-keystone.c
+++ b/drivers/pci/host/pci-keystone.c
@@ -260,12 +260,16 @@ static int keystone_pcie_fault(unsigned long addr, unsigned int fsr,
 	return 0;
 }
 
-static void __init ks_pcie_host_init(struct pcie_port *pp)
+static int __init ks_pcie_host_init(struct pcie_port *pp)
 {
 	struct keystone_pcie *ks_pcie = to_keystone_pcie(pp);
 	u32 val;
+	int ret;
+
+	ret = ks_pcie_establish_link(ks_pcie);
+	if (ret < 0)
+		return ret;
 
-	ks_pcie_establish_link(ks_pcie);
 	ks_dw_pcie_setup_rc_app_regs(ks_pcie);
 	ks_pcie_setup_interrupts(ks_pcie);
 	writew(PCI_IO_RANGE_TYPE_32 | (PCI_IO_RANGE_TYPE_32 << 8),
@@ -287,6 +291,8 @@ static void __init ks_pcie_host_init(struct pcie_port *pp)
 	 */
 	hook_fault_code(17, keystone_pcie_fault, SIGBUS, 0,
 			"Asynchronous external abort");
+
+	return 0;
 }
 
 static struct pcie_host_ops keystone_pcie_host_ops = {
diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c
index 6537079..60c8b84 100644
--- a/drivers/pci/host/pci-layerscape.c
+++ b/drivers/pci/host/pci-layerscape.c
@@ -103,30 +103,32 @@ static int ls1021_pcie_link_up(struct pcie_port *pp)
 	return 1;
 }
 
-static void ls1021_pcie_host_init(struct pcie_port *pp)
+static int ls1021_pcie_host_init(struct pcie_port *pp)
 {
 	struct device *dev = pp->dev;
 	struct ls_pcie *pcie = to_ls_pcie(pp);
 	u32 index[2];
+	int ret;
 
 	pcie->scfg = syscon_regmap_lookup_by_phandle(dev->of_node,
 						     "fsl,pcie-scfg");
 	if (IS_ERR(pcie->scfg)) {
 		dev_err(dev, "No syscfg phandle specified\n");
-		pcie->scfg = NULL;
-		return;
+		return PTR_ERR(pcie->scfg);
 	}
 
-	if (of_property_read_u32_array(dev->of_node,
-				       "fsl,pcie-scfg", index, 2)) {
-		pcie->scfg = NULL;
-		return;
-	}
+	ret = of_property_read_u32_array(dev->of_node,
+				       "fsl,pcie-scfg", index, 2);
+	if (ret < 0)
+		return ret;
+
 	pcie->index = index[1];
 
 	dw_pcie_setup_rc(pp);
 
 	ls_pcie_drop_msg_tlp(pcie);
+
+	return 0;
 }
 
 static int ls_pcie_link_up(struct pcie_port *pp)
@@ -144,7 +146,7 @@ static int ls_pcie_link_up(struct pcie_port *pp)
 	return 1;
 }
 
-static void ls_pcie_host_init(struct pcie_port *pp)
+static int ls_pcie_host_init(struct pcie_port *pp)
 {
 	struct ls_pcie *pcie = to_ls_pcie(pp);
 
@@ -153,6 +155,8 @@ static void ls_pcie_host_init(struct pcie_port *pp)
 	ls_pcie_clear_multifunction(pcie);
 	ls_pcie_drop_msg_tlp(pcie);
 	iowrite32(0, pcie->pp.dbi_base + PCIE_DBI_RO_WR_EN);
+
+	return 0;
 }
 
 static int ls_pcie_msi_host_init(struct pcie_port *pp,
diff --git a/drivers/pci/host/pcie-armada8k.c b/drivers/pci/host/pcie-armada8k.c
index 0ac0f18..29bdd8b 100644
--- a/drivers/pci/host/pcie-armada8k.c
+++ b/drivers/pci/host/pcie-armada8k.c
@@ -134,12 +134,14 @@ static void armada8k_pcie_establish_link(struct armada8k_pcie *pcie)
 		dev_err(pp->dev, "Link not up after reconfiguration\n");
 }
 
-static void armada8k_pcie_host_init(struct pcie_port *pp)
+static int armada8k_pcie_host_init(struct pcie_port *pp)
 {
 	struct armada8k_pcie *pcie = to_armada8k_pcie(pp);
 
 	dw_pcie_setup_rc(pp);
 	armada8k_pcie_establish_link(pcie);
+
+	return 0;
 }
 
 static irqreturn_t armada8k_pcie_irq_handler(int irq, void *arg)
diff --git a/drivers/pci/host/pcie-designware-plat.c b/drivers/pci/host/pcie-designware-plat.c
index 1a02038..e01adbb 100644
--- a/drivers/pci/host/pcie-designware-plat.c
+++ b/drivers/pci/host/pcie-designware-plat.c
@@ -35,13 +35,19 @@ static irqreturn_t dw_plat_pcie_msi_irq_handler(int irq, void *arg)
 	return dw_handle_msi_irq(pp);
 }
 
-static void dw_plat_pcie_host_init(struct pcie_port *pp)
+static int dw_plat_pcie_host_init(struct pcie_port *pp)
 {
+	int ret;
+
 	dw_pcie_setup_rc(pp);
-	dw_pcie_wait_for_link(pp);
+	ret = dw_pcie_wait_for_link(pp);
+	if (ret)
+		return ret;
 
 	if (IS_ENABLED(CONFIG_PCI_MSI))
 		dw_pcie_msi_init(pp);
+
+	return 0;
 }
 
 static struct pcie_host_ops dw_plat_pcie_host_ops = {
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index bed1999..4a81b72 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -638,7 +638,9 @@ int dw_pcie_host_init(struct pcie_port *pp)
 	}
 
 	if (pp->ops->host_init)
-		pp->ops->host_init(pp);
+		ret = pp->ops->host_init(pp);
+			if (ret < 0)
+				goto error;
 
 	pp->root_bus_nr = pp->busn->start;
 	if (IS_ENABLED(CONFIG_PCI_MSI)) {
diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index a567ea2..eacf18f 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -63,7 +63,7 @@ struct pcie_host_ops {
 	int (*wr_other_conf)(struct pcie_port *pp, struct pci_bus *bus,
 			unsigned int devfn, int where, int size, u32 val);
 	int (*link_up)(struct pcie_port *pp);
-	void (*host_init)(struct pcie_port *pp);
+	int (*host_init)(struct pcie_port *pp);
 	void (*msi_set_irq)(struct pcie_port *pp, int irq);
 	void (*msi_clear_irq)(struct pcie_port *pp, int irq);
 	phys_addr_t (*get_msi_addr)(struct pcie_port *pp);
diff --git a/drivers/pci/host/pcie-qcom.c b/drivers/pci/host/pcie-qcom.c
index 3593640..7d5fb38 100644
--- a/drivers/pci/host/pcie-qcom.c
+++ b/drivers/pci/host/pcie-qcom.c
@@ -429,7 +429,7 @@ static int qcom_pcie_link_up(struct pcie_port *pp)
 	return !!(val & PCI_EXP_LNKSTA_DLLLA);
 }
 
-static void qcom_pcie_host_init(struct pcie_port *pp)
+static int qcom_pcie_host_init(struct pcie_port *pp)
 {
 	struct qcom_pcie *pcie = to_qcom_pcie(pp);
 	int ret;
@@ -455,12 +455,13 @@ static void qcom_pcie_host_init(struct pcie_port *pp)
 	if (ret)
 		goto err;
 
-	return;
+	return ret;
 err:
 	qcom_ep_reset_assert(pcie);
 	phy_power_off(pcie->phy);
 err_deinit:
 	pcie->ops->deinit(pcie);
+	return ret;
 }
 
 static int qcom_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
diff --git a/drivers/pci/host/pcie-spear13xx.c b/drivers/pci/host/pcie-spear13xx.c
index 3cf197b..2408f80 100644
--- a/drivers/pci/host/pcie-spear13xx.c
+++ b/drivers/pci/host/pcie-spear13xx.c
@@ -174,12 +174,18 @@ static int spear13xx_pcie_link_up(struct pcie_port *pp)
 	return 0;
 }
 
-static void spear13xx_pcie_host_init(struct pcie_port *pp)
+static int spear13xx_pcie_host_init(struct pcie_port *pp)
 {
 	struct spear13xx_pcie *spear13xx_pcie = to_spear13xx_pcie(pp);
+	int ret;
+
+	ret = spear13xx_pcie_establish_link(spear13xx_pcie);
+	if (ret < 0)
+		return ret;
 
-	spear13xx_pcie_establish_link(spear13xx_pcie);
 	spear13xx_pcie_enable_interrupts(spear13xx_pcie);
+
+	return 0;
 }
 
 static struct pcie_host_ops spear13xx_pcie_host_ops = {
