Messages in this thread | | | From | Yoshihiro Shimoda <> | Subject | RE: [PATCH] usb: gadget: udc: renesas_usb3: fix error return code in renesas_usb3_probe() | Date | Wed, 9 Aug 2017 11:44:48 +0000 |
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Hi Gustavo,
Thank you for the patch!
> -----Original Message----- > From: Gustavo A. R. Silva > Sent: Wednesday, August 9, 2017 7:35 AM > > platform_get_irq() returns an error code, but the renesas_usb3 driver > ignores it and always returns -ENODEV. This is not correct and, > prevents -EPROBE_DEFER from being propagated properly.
Thank you for the point. I got it.
> Also, notice that platform_get_irq() no longer returns 0 on error: > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92 > af
I don't think this explanation needs. After this is removed,
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Best regards, Yoshihiro Shimoda
> Print error message and propagate the return value of platform_get_irq > on failure. > > This issue was detected with the help of Coccinelle. > > Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> > --- > drivers/usb/gadget/udc/renesas_usb3.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c > index e1de8fe..616d053 100644 > --- a/drivers/usb/gadget/udc/renesas_usb3.c > +++ b/drivers/usb/gadget/udc/renesas_usb3.c > @@ -2468,8 +2468,10 @@ static int renesas_usb3_probe(struct platform_device *pdev) > priv = match->data; > > irq = platform_get_irq(pdev, 0); > - if (irq < 0) > - return -ENODEV; > + if (irq < 0) { > + dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq); > + return irq; > + } > > usb3 = devm_kzalloc(&pdev->dev, sizeof(*usb3), GFP_KERNEL); > if (!usb3) > -- > 2.5.0 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-usb" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
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