PCI: imx6: Fix resource leaks in probe error paths

imx_pcie_probe() leaks both pwrctrl devices and power domains on failure:

  - imx_pcie_attach_pd() attaches the "pcie" and "pcie_phy" power domains
    and adds device links to them, but nothing detaches the domains or
    removes the links on probe failure or deferral, so they leak.

  - A failure of devm_pm_runtime_set_active_enabled() returns directly
    without destroying the pwrctrl devices.

  - A partial failure inside imx_pcie_attach_pd() leaks the power domains
    that were already attached.

Add imx_pcie_detach_pd_action() to remove the device links and detach the
power domains in reverse order of acquisition and register it with
devm_add_action_or_reset() so they are released automatically on probe
failure.

Fixes: 2c5768344f88 ("PCI: imx6: Move pci_pwrctrl_create_devices() to imx_pcie_probe()")
Reported-by: sashiko-bot@kernel.org
Link: https://lore.kernel.org/all/20260822013640.182C01F000E9@smtp.kernel.org/
Signed-off-by: Zhijian Han <hanzhijian1991@gmail.com>
[mani: removed the imx_pcie_detach_pd() helper]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
[bhelgaas: update commit log to match inlining of imx_pcie_detach_pd() into
imx_pcie_detach_pd_action()]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260904012307.3434449-1-hanzhijian1991@gmail.com

0 files changed, 0 insertions, 0 deletions