PCI: imx6: Remove unused assignment to variable ret

Previously, the maximum link speed was set following an "fsl,max-link-speed"
property read, and should the read failed, then the PCIe generation was
manually set to PCIe Gen1 and thus limiting the link speed to 2.5 GT/s.

Code refactoring completed in the commit 39bc5006501c ("PCI: dwc:
Centralize link gen setting") changed to the logic that was previously
used to limit the maximum link speed leaving behind an unused assignment
to a variable "ret".

Since the value returned from the of_property_read_u32() and stored in
the variable "ret" is never used in any meaningful way, and it's also
immediately reassigned in the code that follows, the assignment can be
removed.

Link: https://lore.kernel.org/r/20211003025439.84783-1-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 80fc98acf097f6ff85b2a34276a7cca80825e8d7..26f49f797b0fee27c0fdb0514fcaffb72a61ef56 100644 (file)
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -1132,7 +1132,7 @@ static int imx6_pcie_probe(struct platform_device *pdev)
 
        /* Limit link speed */
        pci->link_gen = 1;
-       ret = of_property_read_u32(node, "fsl,max-link-speed", &pci->link_gen);
+       of_property_read_u32(node, "fsl,max-link-speed", &pci->link_gen);
 
        imx6_pcie->vpcie = devm_regulator_get_optional(&pdev->dev, "vpcie");
        if (IS_ERR(imx6_pcie->vpcie)) {