diff options
| author | Sergey Shtylyov <s.shtylyov@omp.ru> | 2021-08-13 23:32:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-16 19:57:19 +0300 |
| commit | 0d45a1373e669880b8beaecc8765f44cb0241e47 (patch) | |
| tree | a42a794d1e820441bd93c091ae6e772600fb60e4 /drivers/usb/phy | |
| parent | 4ac5132e8a4300637a2da8f5d6bc7650db735b8a (diff) | |
| download | linux-0d45a1373e669880b8beaecc8765f44cb0241e47.tar.xz | |
usb: phy: tahvo: add IRQ check
The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to request_threaded_irq() (which
takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding an
original error code. Stop calling request_threaded_irq() with the invalid
IRQ #s.
Fixes: 9ba96ae5074c ("usb: omap1: Tahvo USB transceiver driver")
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/8280d6a4-8e9a-7cfe-1aa9-db586dc9afdf@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/phy')
| -rw-r--r-- | drivers/usb/phy/phy-tahvo.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/phy/phy-tahvo.c b/drivers/usb/phy/phy-tahvo.c index baebb1f5a973..a3e043e3e4aa 100644 --- a/drivers/usb/phy/phy-tahvo.c +++ b/drivers/usb/phy/phy-tahvo.c @@ -393,7 +393,9 @@ static int tahvo_usb_probe(struct platform_device *pdev) dev_set_drvdata(&pdev->dev, tu); - tu->irq = platform_get_irq(pdev, 0); + tu->irq = ret = platform_get_irq(pdev, 0); + if (ret < 0) + return ret; ret = request_threaded_irq(tu->irq, NULL, tahvo_usb_vbus_interrupt, IRQF_ONESHOT, "tahvo-vbus", tu); |