PCI: qcom: Fix error handling in runtime PM support

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The driver does not cope with the fact that probe can fail in a number
of cases after enabling runtime PM on the device; this results in
warnings about "Unbalanced pm_runtime_enable". Furthermore if probe
fails after invoking qcom_pcie_host_init() the power-domain will be left
referenced.

As it is not possible for the error handling in qcom_pcie_host_init() to
handle errors happening after returning from that function the
pm_runtime_get_sync() is moved to qcom_pcie_probe() as well.

Fixes: 854b69efbd ("PCI: qcom: add runtime pm support to pcie_port")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>

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Bjorn Andersson 2018-08-31 15:55:10 -07:00 • committed by Lorenzo Pieralisi

parent 0ee2c1f242

commit 6e5da6f7d8

1 changed files with 39 additions and 17 deletions

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drivers/pci/controller/dwc/pcie-qcom.c

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