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| author | Zhang Shurong <zhang_shurong@foxmail.com> | 2023-08-26 13:02:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-20 13:51:55 +0300 |
| commit | 5c25f89c00b97844d0427f0f96818a15714bd609 (patch) | |
| tree | f342f889cb6085d079bb9c29942bf45bb2d82b7f /drivers/spi | |
| parent | 51d4d3cd18362a95670ba54e3dbebc031a70e803 (diff) | |
| download | linux-5c25f89c00b97844d0427f0f96818a15714bd609.tar.xz | |
spi: tegra: Fix missing IRQ check in tegra_slink_probe()
[ Upstream commit eb9913b511f10968a02cfa5329a896855dd152a3 ]
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: dc4dc3605639 ("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>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-tegra20-slink.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index 148043d0c2b8..24cab56ecb7f 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -1093,6 +1093,8 @@ static int tegra_slink_probe(struct platform_device *pdev) reset_control_deassert(tspi->rst); spi_irq = platform_get_irq(pdev, 0); + if (spi_irq < 0) + return spi_irq; tspi->irq = spi_irq; ret = request_threaded_irq(tspi->irq, tegra_slink_isr, tegra_slink_isr_thread, IRQF_ONESHOT, |