diff options
| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2017-08-09 01:34:45 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-08-09 13:09:19 +0300 |
| commit | 8e374f0add2dc153d270757a71de45a0ba7d7004 (patch) | |
| tree | 702383d0501b4d48bc10334acd058110517bef33 | |
| parent | b765ff181ef64c56fad5cba31c1856fe8ef92d3c (diff) | |
| download | linux-8e374f0add2dc153d270757a71de45a0ba7d7004.tar.xz | |
usb: gadget: udc: renesas_usb3: fix error return code in renesas_usb3_probe()
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.
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=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af
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>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| -rw-r--r-- | drivers/usb/gadget/udc/renesas_usb3.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index 62dc9c7798e7..6110dfcbaa26 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -2457,8 +2457,10 @@ 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) |