6.7-stable review patch. If anyone has any objections, please let me know.
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From: Krzysztof Wilczyński kwilczynski@kernel.org
[ Upstream commit 7aa5f8fcd6d95b713a39fe52c296a6892eda7f02 ]
The error paths that follow calls to the devm_request_irq() functions within the xilinx_pl_dma_pcie_setup_irq() reference an uninitialized symbol each that also so happens to be incorrect.
Thus, fix this omission and reference the correct variable when invoking a given dev_err() function following an error.
This problem was found using smatch via the 0-DAY CI Kernel Test service:
drivers/pci/controller/pcie-xilinx-dma-pl.c:638 xilinx_pl_dma_pcie_setup_irq() error: uninitialized symbol 'irq'. drivers/pci/controller/pcie-xilinx-dma-pl.c:645 xilinx_pl_dma_pcie_setup_irq() error: uninitialized symbol 'irq'.
Fixes: 8d786149d78c ("PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver") Link: https://lore.kernel.org/oe-kbuild/202312120248.5DblxkBp-lkp@intel.com/ Reported-by: kernel test robot lkp@intel.com Reported-by: Dan Carpenter dan.carpenter@linaro.org Closes: https://lore.kernel.org/r/202312120248.5DblxkBp-lkp@intel.com/ Signed-off-by: Krzysztof Wilczyński kwilczynski@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/controller/pcie-xilinx-dma-pl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/pcie-xilinx-dma-pl.c b/drivers/pci/controller/pcie-xilinx-dma-pl.c index 2f7d676c683c..96aedc85802a 100644 --- a/drivers/pci/controller/pcie-xilinx-dma-pl.c +++ b/drivers/pci/controller/pcie-xilinx-dma-pl.c @@ -635,14 +635,14 @@ static int xilinx_pl_dma_pcie_setup_irq(struct pl_dma_pcie *port) err = devm_request_irq(dev, port->intx_irq, xilinx_pl_dma_pcie_intx_flow, IRQF_SHARED | IRQF_NO_THREAD, NULL, port); if (err) { - dev_err(dev, "Failed to request INTx IRQ %d\n", irq); + dev_err(dev, "Failed to request INTx IRQ %d\n", port->intx_irq); return err; }
err = devm_request_irq(dev, port->irq, xilinx_pl_dma_pcie_event_flow, IRQF_SHARED | IRQF_NO_THREAD, NULL, port); if (err) { - dev_err(dev, "Failed to request event IRQ %d\n", irq); + dev_err(dev, "Failed to request event IRQ %d\n", port->irq); return err; }