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spi: tegra114: Add missing IRQ check in tegra_spi_probe

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[ 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: f333a331ad ("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>
This commit is contained in:
Miaoqian Lin 2022-01-28 16:52:38 +00:00 committed by Greg Kroah-Hartman
parent 71dba67138
commit 99a8dfce7c
1 changed files with 4 additions and 0 deletions
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4
drivers/spi/spi-tegra114.c
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@ -1353,6 +1353,10 @@ 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");