Hi Yoshihiro,
On 08/09/2017 06:44 AM, Yoshihiro Shimoda wrote:
Hi Gustavo,
Thank you for the patch!
I'm glad to help :)
-----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@xxxxxxxxxxx>
Thank you
--
Gustavo A. R. Silva
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@xxxxxxxxxxxxxx>
---
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
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