spi: tegra: Fix missing IRQ check in tegra_slink_probe()
[ Upstream commiteb9913b511
] This func misses checking for platform_get_irq()'s call and may passes the negative error codes to request_irq(), which takes unsigned IRQ #, causing it to fail with -EINVAL, overriding an original error code. Fix this by stop calling request_irq() with invalid IRQ #s. Fixes:dc4dc36056
("spi: tegra: add spi driver for SLINK controller") Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com> Reviewed-by: Helen Koike <helen.koike@collabora.com> Link: https://lore.kernel.org/r/tencent_73FCC06A3D1C14EE5175253C6FB46A07B709@qq.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -1093,6 +1093,8 @@ static int tegra_slink_probe(struct platform_device *pdev)
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reset_control_deassert(tspi->rst);
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spi_irq = platform_get_irq(pdev, 0);
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if (spi_irq < 0)
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return spi_irq;
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tspi->irq = spi_irq;
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ret = request_threaded_irq(tspi->irq, tegra_slink_isr,
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tegra_slink_isr_thread, IRQF_ONESHOT,
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