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| author | Zhu Wang <wangzhu9@huawei.com> | 2023-08-04 19:00:05 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-04 14:46:24 +0200 |
| commit | 4f4bda58c5aef66493f9878463c3f28502653067 (patch) | |
| tree | 765b99f9fffe21e32bba8d68eaa7655c3430a413 /drivers/usb | |
| parent | d3af2f4c0434f3dde7f921f52614af81787bbec6 (diff) | |
| download | linux-stable-4f4bda58c5aef66493f9878463c3f28502653067.tar.gz linux-stable-4f4bda58c5aef66493f9878463c3f28502653067.tar.bz2 linux-stable-4f4bda58c5aef66493f9878463c3f28502653067.zip | |
usb: gadget: udc: gr_udc: Fix deferred probing
When platform_get_irq() fails, it may return -EPROBE_DEFER, which
suggested deferred probing, it is very important to propagate it
upstream. We cannot override it with other error code.
Commit ce753ad1549c ("platform: finally disallow IRQ0 in
platform_get_irq() and its ilk") makes sure IRQ0 is not returned.
Signed-off-by: Zhu Wang <wangzhu9@huawei.com>
Link: https://lore.kernel.org/r/20230804110005.97061-1-wangzhu9@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/udc/gr_udc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c index 0c3969301a53..c6dfa7cccc11 100644 --- a/drivers/usb/gadget/udc/gr_udc.c +++ b/drivers/usb/gadget/udc/gr_udc.c @@ -2136,15 +2136,15 @@ static int gr_probe(struct platform_device *pdev) return PTR_ERR(regs); dev->irq = platform_get_irq(pdev, 0); - if (dev->irq <= 0) - return -ENODEV; + if (dev->irq < 0) + return dev->irq; /* Some core configurations has separate irqs for IN and OUT events */ dev->irqi = platform_get_irq(pdev, 1); if (dev->irqi > 0) { dev->irqo = platform_get_irq(pdev, 2); - if (dev->irqo <= 0) - return -ENODEV; + if (dev->irqo < 0) + return dev->irqo; } else { dev->irqi = 0; } |