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PCI: keystone: Don't discard .probe() callback

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commit 7994db905c upstream.

The __init annotation makes the ks_pcie_probe() function disappear after
booting completes. However a device can also be bound later. In that case,
we try to call ks_pcie_probe(), but the backing memory is likely already
overwritten.

The right thing to do is do always have the probe callback available.  Note
that the (wrong) __refdata annotation prevented this issue to be noticed by
modpost.

Fixes: 0c4ffcfe1f ("PCI: keystone: Add TI Keystone PCIe driver")
Link: https://lore.kernel.org/r/20231001170254.2506508-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König 2023-10-01 19:02:54 +02:00 committed by Greg Kroah-Hartman
parent 9988c9dc3c
commit 012dba0ab8
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/controller/dwc/pci-keystone.c
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@ -1181,7 +1181,7 @@ static const struct of_device_id ks_pcie_of_match[] = {
{ }, { },
}; };
static int __init ks_pcie_probe(struct platform_device *pdev) static int ks_pcie_probe(struct platform_device *pdev)
{ {
const struct dw_pcie_host_ops *host_ops; const struct dw_pcie_host_ops *host_ops;
const struct dw_pcie_ep_ops *ep_ops; const struct dw_pcie_ep_ops *ep_ops;
@ -1423,7 +1423,7 @@ static int ks_pcie_remove(struct platform_device *pdev)
return 0; return 0;
} }
static struct platform_driver ks_pcie_driver __refdata = { static struct platform_driver ks_pcie_driver = {
.probe = ks_pcie_probe, .probe = ks_pcie_probe,
.remove = ks_pcie_remove, .remove = ks_pcie_remove,
.driver = { .driver = {