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| author | Sergey Shtylyov <s.shtylyov@omp.ru> | 2021-12-17 23:27:17 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-12-21 15:22:34 +0300 |
| commit | 8fc9a77bc64e1f23d07953439817d8402ac9706f (patch) | |
| tree | f631f16a62aea4ff47dd282ead1040f327bc00e5 /drivers/mmc | |
| parent | 77bed755e0f06135faccdd3948863703f9a6e640 (diff) | |
| download | linux-8fc9a77bc64e1f23d07953439817d8402ac9706f.tar.xz | |
mmc: meson-mx-sdio: add IRQ check
The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to devm_request_threaded_irq()
(which takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding
an original error code. Stop calling devm_request_threaded_irq() with the
invalid IRQ #s.
Fixes: ed80a13bb4c4 ("mmc: meson-mx-sdio: Add a driver for the Amlogic Meson8 and Meson8b SoC")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20211217202717.10041-3-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/meson-mx-sdio.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/host/meson-mx-sdio.c b/drivers/mmc/host/meson-mx-sdio.c index d4a48916bfb6..3a19a05ef55a 100644 --- a/drivers/mmc/host/meson-mx-sdio.c +++ b/drivers/mmc/host/meson-mx-sdio.c @@ -662,6 +662,11 @@ static int meson_mx_mmc_probe(struct platform_device *pdev) } irq = platform_get_irq(pdev, 0); + if (irq < 0) { + ret = irq; + goto error_free_mmc; + } + ret = devm_request_threaded_irq(host->controller_dev, irq, meson_mx_mmc_irq, meson_mx_mmc_irq_thread, IRQF_ONESHOT, |