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| author | Vidya Sagar <vidyas@nvidia.com> | 2020-12-03 19:04:50 +0530 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-12-07 16:43:52 +0000 |
| commit | 3d710af75bcdea2e9cb8cdb2f7663cef7b133f5e (patch) | |
| tree | 88aee7b0b79cb3959b68aa7e73d886f591e51ccf /drivers | |
| parent | b8f0d67149acf762861f9b02bc3d5bd49b2f72bd (diff) | |
| download | linux-stable-3d710af75bcdea2e9cb8cdb2f7663cef7b133f5e.tar.gz linux-stable-3d710af75bcdea2e9cb8cdb2f7663cef7b133f5e.tar.bz2 linux-stable-3d710af75bcdea2e9cb8cdb2f7663cef7b133f5e.zip | |
PCI: tegra: Check return value of tegra_pcie_init_controller()
The return value of tegra_pcie_init_controller() must be checked before
PCIe link up check and registering debugfs entries subsequently as it
doesn't make sense to do these when the controller initialization itself
has failed.
Link: https://lore.kernel.org/r/20201203133451.17716-5-vidyas@nvidia.com
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-tegra194.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index 471c6d725c70..f4109d71f20b 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -1563,7 +1563,11 @@ static int tegra_pcie_config_rp(struct tegra_pcie_dw *pcie) goto fail_pm_get_sync; } - tegra_pcie_init_controller(pcie); + ret = tegra_pcie_init_controller(pcie); + if (ret < 0) { + dev_err(dev, "Failed to initialize controller: %d\n", ret); + goto fail_pm_get_sync; + } pcie->link_state = tegra_pcie_dw_link_up(&pcie->pci); if (!pcie->link_state) { |