diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2023-05-30 17:17:20 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-13 11:51:55 +0200 |
| commit | 3e6ac852fbc71a234de24b5455086f6b98d3d958 (patch) | |
| tree | cf7d7be17828c6841d4c8932917462a266ff9c0d | |
| parent | 7b672f282cf4712cb392ef798f0305cc4de32454 (diff) | |
| download | linux-3e6ac852fbc71a234de24b5455086f6b98d3d958.tar.gz | |
usb: gadget: udc: renesas_usb3: Fix RZ/V2M {modprobe,bind} error
Currently {modprobe, bind} after {rmmod, unbind} results in probe failure.
genirq: Flags mismatch irq 22. 00000004 (85070400.usb3drd) vs. 00000004 (85070400.usb3drd)
renesas_usb3: probe of 85070000.usb3peri failed with error -16
The reason is, it is trying to register an interrupt handler for the same
IRQ twice. The devm_request_irq() was called with the parent device.
So the interrupt handler won't be unregistered when the usb3-peri device
is unbound.
Fix this issue by replacing "parent dev"->"dev" as the irq resource
is managed by this driver.
Fixes: 9cad72dfc556 ("usb: gadget: Add support for RZ/V2M USB3DRD driver")
Cc: stable <stable@kernel.org>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Message-ID: <20230530161720.179927-1-biju.das.jz@bp.renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/gadget/udc/renesas_usb3.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index aac8bc185afa90..eb008e873361fc 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -2877,9 +2877,9 @@ static int renesas_usb3_probe(struct platform_device *pdev) struct rzv2m_usb3drd *ddata = dev_get_drvdata(pdev->dev.parent); usb3->drd_reg = ddata->reg; - ret = devm_request_irq(ddata->dev, ddata->drd_irq, + ret = devm_request_irq(&pdev->dev, ddata->drd_irq, renesas_usb3_otg_irq, 0, - dev_name(ddata->dev), usb3); + dev_name(&pdev->dev), usb3); if (ret < 0) return ret; } |