lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 26 Jan 2022 11:04:47 +0000 From: Miaoqian Lin <linmq006@...il.com> To: Mark Brown <broonie@...nel.org>, Neil Armstrong <narmstrong@...libre.com>, Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, Martin Blumenstingl <martin.blumenstingl@...glemail.com>, linux-spi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org Cc: linmq006@...il.com Subject: [PATCH] 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@...il.com> --- drivers/spi/spi-meson-spicc.c | 5 +++++ 1 file changed, 5 insertions(+) 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) { -- 2.17.1
Powered by blists - more mailing lists