From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 4f92724d4b92c024e721063f520d66e11ca4b54b ]
This func misses checking for platform_get_irq()'s call and may passes the negative error codes to request_threaded_irq(), which takes unsigned IRQ #, causing it to fail with -EINVAL, overriding an original error code. Stop calling request_threaded_irq() with invalid IRQ #s.
Fixes: f333a331adfa ("spi/tegra114: add spi driver") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220128165238.25615-1-linmq006@gmail.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-tegra114.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c index c510b53e5e3f..a8264f880b76 100644 --- a/drivers/spi/spi-tegra114.c +++ b/drivers/spi/spi-tegra114.c @@ -1136,6 +1136,10 @@ static int tegra_spi_probe(struct platform_device *pdev) tspi->phys = r->start;
spi_irq = platform_get_irq(pdev, 0); + if (spi_irq < 0) { + ret = spi_irq; + goto exit_free_master; + } tspi->irq = spi_irq;
tspi->clk = devm_clk_get(&pdev->dev, "spi");