The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 4d60f6d4b8fa4d7bad4aeb2b3ee5c10425bc60a4 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024100129-hankie-animator-1715@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:

4d60f6d4b8fa ("PCI: dra7xx: Fix error handling when IRQ request fails in probe")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 4d60f6d4b8fa4d7bad4aeb2b3ee5c10425bc60a4 Mon Sep 17 00:00:00 2001 From: Siddharth Vadapalli s-vadapalli@ti.com Date: Tue, 27 Aug 2024 17:54:22 +0530 Subject: [PATCH] PCI: dra7xx: Fix error handling when IRQ request fails in probe MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit

Commit d4c7d1a089d6 ("PCI: dwc: dra7xx: Push request_irq() call to the bottom of probe") moved the IRQ request for "dra7xx-pcie-main" towards the end of dra7xx_pcie_probe().

However, the error handling does not take into account the initialization performed by either dra7xx_add_pcie_port() or dra7xx_add_pcie_ep(), depending on the mode of operation.

Fix the error handling to address this.

Fixes: d4c7d1a089d6 ("PCI: dwc: dra7xx: Push request_irq() call to the bottom of probe") Link: https://lore.kernel.org/linux-pci/20240827122422.985547-3-s-vadapalli@ti.com Tested-by: Udit Kumar u-kumar1@ti.com Signed-off-by: Siddharth Vadapalli s-vadapalli@ti.com [kwilczynski: commit log] Signed-off-by: Krzysztof Wilczyński kwilczynski@kernel.org Reviewed-by: Kevin Hilman khilman@baylibre.com Reviewed-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Cc: stable@vger.kernel.org

diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c index 20fb50741f3d..5c62e1a3ba52 100644 --- a/drivers/pci/controller/dwc/pci-dra7xx.c +++ b/drivers/pci/controller/dwc/pci-dra7xx.c @@ -854,11 +854,17 @@ static int dra7xx_pcie_probe(struct platform_device *pdev) "dra7xx-pcie-main", dra7xx); if (ret) { dev_err(dev, "failed to request irq\n"); - goto err_gpio; + goto err_deinit; }

return 0;

+err_deinit: + if (dra7xx->mode == DW_PCIE_RC_TYPE) + dw_pcie_host_deinit(&dra7xx->pci->pp); + else + dw_pcie_ep_deinit(&dra7xx->pci->ep); + err_gpio: err_get_sync: pm_runtime_put(dev);