PCI: qcom: Fix an error handling path in 'qcom_pcie_probe()'

If 'of_device_get_match_data()' fails, previous 'pm_runtime_get_sync()/
pm_runtime_enable()' should be undone.

To fix it, the easiest is to move this block of code before the memory
allocations and the pm_runtime_xxx calls.

Link: https://lore.kernel.org/r/4d03c636193f64907c8dacb17fa71ed05fd5f60c.1636220582.git.christophe.jaillet@wanadoo.fr
Fixes: b89ff41 ("PCI: qcom: Replace ops with struct pcie_cfg in pcie match data")
Signed-off-by: Christophe JAILLET <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>

Author: tititiou36

drivers/pci/controller/dwc/pcie-qcom.c

@@ -1534,6 +1534,12 @@ static int qcom_pcie_probe(struct platform_device *pdev)
 	const struct qcom_pcie_cfg *pcie_cfg;
 	int ret;
 
+	pcie_cfg = of_device_get_match_data(dev);
+	if (!pcie_cfg || !pcie_cfg->ops) {
+		dev_err(dev, "Invalid platform data\n");
+		return -EINVAL;
+	}
+
 	pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
 	if (!pcie)
 		return -ENOMEM;
@@ -1553,12 +1559,6 @@ static int qcom_pcie_probe(struct platform_device *pdev)
 
 	pcie->pci = pci;
 
-	pcie_cfg = of_device_get_match_data(dev);
-	if (!pcie_cfg || !pcie_cfg->ops) {
-		dev_err(dev, "Invalid platform data\n");
-		return -EINVAL;
-	}
-
 	pcie->ops = pcie_cfg->ops;
 	pcie->pipe_clk_need_muxing = pcie_cfg->pipe_clk_need_muxing;