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| author | Sergey Shtylyov <s.shtylyov@omp.ru> | 2021-08-13 23:30:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-16 19:57:18 +0300 |
| commit | 4ac5132e8a4300637a2da8f5d6bc7650db735b8a (patch) | |
| tree | d86fe333619d45452e46421428dcc7c76eddf2e6 /drivers/usb/host/ohci-tmio.c | |
| parent | 1a5f6cd286670238265b3c17ae0e8bd146828f40 (diff) | |
| download | linux-4ac5132e8a4300637a2da8f5d6bc7650db735b8a.tar.xz | |
usb: host: ohci-tmio: add IRQ check
The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to usb_add_hcd() (which takes
*unsigned* IRQ #), causing request_irq() that it calls to fail with
-EINVAL, overriding an original error code. Stop calling usb_add_hcd()
with the invalid IRQ #s.
Fixes: 78c73414f4f6 ("USB: ohci: add support for tmio-ohci cell")
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/402e1a45-a0a4-0e08-566a-7ca1331506b1@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ohci-tmio.c')
| -rw-r--r-- | drivers/usb/host/ohci-tmio.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c index 7f857bad9e95..08ec2ab0d95a 100644 --- a/drivers/usb/host/ohci-tmio.c +++ b/drivers/usb/host/ohci-tmio.c @@ -202,6 +202,9 @@ static int ohci_hcd_tmio_drv_probe(struct platform_device *dev) if (!cell) return -EINVAL; + if (irq < 0) + return irq; + hcd = usb_create_hcd(&ohci_tmio_hc_driver, &dev->dev, dev_name(&dev->dev)); if (!hcd) { ret = -ENOMEM; |