From: Uwe Kleine-König Date: Sun, 1 Oct 2023 17:02:52 +0000 (+0200) Subject: PCI: kirin: Don't discard .remove() callback X-Git-Tag: v6.5.13~184 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=34198b3c544e0d194e12d4c6d7369c43d5bbbb7a;p=thirdparty%2Fkernel%2Fstable.git PCI: kirin: Don't discard .remove() callback commit 3064ef2e88c1629c1e67a77d7bc20020b35846f2 upstream. With CONFIG_PCIE_KIRIN=y and kirin_pcie_remove() marked with __exit, the function is discarded from the driver. In this case a bound device can still get unbound, e.g via sysfs. Then no cleanup code is run resulting in resource leaks or worse. The right thing to do is do always have the remove callback available. This fixes the following warning by modpost: drivers/pci/controller/dwc/pcie-kirin: section mismatch in reference: kirin_pcie_driver+0x8 (section: .data) -> kirin_pcie_remove (section: .exit.text) (with ARCH=x86_64 W=1 allmodconfig). Fixes: 000f60db784b ("PCI: kirin: Add support for a PHY layer") Link: https://lore.kernel.org/r/20231001170254.2506508-3-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König Signed-off-by: Bjorn Helgaas Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c index d09507f822a7d..a824d8e8edb9d 100644 --- a/drivers/pci/controller/dwc/pcie-kirin.c +++ b/drivers/pci/controller/dwc/pcie-kirin.c @@ -742,7 +742,7 @@ err: return ret; } -static int __exit kirin_pcie_remove(struct platform_device *pdev) +static int kirin_pcie_remove(struct platform_device *pdev) { struct kirin_pcie *kirin_pcie = platform_get_drvdata(pdev); @@ -819,7 +819,7 @@ static int kirin_pcie_probe(struct platform_device *pdev) static struct platform_driver kirin_pcie_driver = { .probe = kirin_pcie_probe, - .remove = __exit_p(kirin_pcie_remove), + .remove = kirin_pcie_remove, .driver = { .name = "kirin-pcie", .of_match_table = kirin_pcie_match,