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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-03-21 20:31:59 +0100
committerKrzysztof Wilczyński <kwilczynski@kernel.org>2023-06-24 14:11:56 +0000
commit221879c986980c04923cd6a202a1aafb51e0bc7d (patch)
tree3124b656263209c57f30f07d0bfa9666426926c3 /drivers/pci/controller/dwc/pcie-tegra194.c
parentc86f4bd6008e7e9bd561e1f1ec3889cc0a5925e8 (diff)
PCI: dwc: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert the dwc drivers from always returning zero in the remove callback to the void returning variant. [kwilczynski: commit log] Link: https://lore.kernel.org/linux-pci/20230321193208.366561-7-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Acked-by: Serge Semin <fancer.lancer@gmail.com>
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-tegra194.c')
-rw-r--r--drivers/pci/controller/dwc/pcie-tegra194.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index 09825b4a075e..f373a00e2ea3 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -2268,13 +2268,13 @@ fail:
return ret;
}
-static int tegra_pcie_dw_remove(struct platform_device *pdev)
+static void tegra_pcie_dw_remove(struct platform_device *pdev)
{
struct tegra_pcie_dw *pcie = platform_get_drvdata(pdev);
if (pcie->of_data->mode == DW_PCIE_RC_TYPE) {
if (!pcie->link_state)
- return 0;
+ return;
debugfs_remove_recursive(pcie->debugfs);
tegra_pcie_deinit_controller(pcie);
@@ -2288,8 +2288,6 @@ static int tegra_pcie_dw_remove(struct platform_device *pdev)
tegra_bpmp_put(pcie->bpmp);
if (pcie->pex_refclk_sel_gpiod)
gpiod_set_value(pcie->pex_refclk_sel_gpiod, 0);
-
- return 0;
}
static int tegra_pcie_dw_suspend_late(struct device *dev)
@@ -2483,7 +2481,7 @@ static const struct dev_pm_ops tegra_pcie_dw_pm_ops = {
static struct platform_driver tegra_pcie_dw_driver = {
.probe = tegra_pcie_dw_probe,
- .remove = tegra_pcie_dw_remove,
+ .remove_new = tegra_pcie_dw_remove,
.shutdown = tegra_pcie_dw_shutdown,
.driver = {
.name = "tegra194-pcie",