6.1-stable review patch. If anyone has any objections, please let me know.
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From: Jinjie Ruan ruanjinjie@huawei.com
[ Upstream commit b787a33864121a565aeb0e88561bf6062a19f99c ]
In spi_geni_remove(), the free_irq() sequence is different from that on the probe error path. And the IRQ will still remain and it's interrupt handler may use the dma channel after release dma channel and before free irq, which is not secure, fix it.
Fixes: b59c122484ec ("spi: spi-geni-qcom: Add support for GPI dma") Signed-off-by: Jinjie Ruan ruanjinjie@huawei.com Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Link: https://patch.msgid.link/20240909073141.951494-3-ruanjinjie@huawei.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-geni-qcom.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c index 6d8eb7c26076..17b5299c18c7 100644 --- a/drivers/spi/spi-geni-qcom.c +++ b/drivers/spi/spi-geni-qcom.c @@ -1011,9 +1011,9 @@ static void spi_geni_remove(struct platform_device *pdev) /* Unregister _before_ disabling pm_runtime() so we stop transfers */ spi_unregister_master(spi);
- spi_geni_release_dma_chan(mas); - free_irq(mas->irq, spi); + + spi_geni_release_dma_chan(mas); }
static int __maybe_unused spi_geni_runtime_suspend(struct device *dev)