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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-01-26 14:04:47 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-01-26 16:32:36 +0300 |
| commit | e937440f7fc444a3e3f1fb75ea65292d6f433a44 (patch) | |
| tree | e65ffca022ce791fc5ee04bfc3f1e16ff517ab15 /drivers/spi/spi-meson-spicc.c | |
| parent | 23e3404de1aecc62c14ac96d4b63403c3e0f52d5 (diff) | |
| download | linux-e937440f7fc444a3e3f1fb75ea65292d6f433a44.tar.xz | |
spi: meson-spicc: add IRQ check in meson_spicc_probe
This check misses checking for platform_get_irq()'s call and may passes
the negative error codes to devm_request_irq(), which takes unsigned IRQ #,
causing it to fail with -EINVAL, overriding an original error code.
Stop calling devm_request_irq() with invalid IRQ #s.
Fixes: 454fa271bc4e ("spi: Add Meson SPICC driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220126110447.24549-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-meson-spicc.c')
| -rw-r--r-- | drivers/spi/spi-meson-spicc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c index c208efeadd18..0bc7daa7afc8 100644 --- a/drivers/spi/spi-meson-spicc.c +++ b/drivers/spi/spi-meson-spicc.c @@ -693,6 +693,11 @@ static int meson_spicc_probe(struct platform_device *pdev) writel_relaxed(0, spicc->base + SPICC_INTREG); irq = platform_get_irq(pdev, 0); + if (irq < 0) { + ret = irq; + goto out_master; + } + ret = devm_request_irq(&pdev->dev, irq, meson_spicc_irq, 0, NULL, spicc); if (ret) { |