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| author | Quentin Schulz <quentin.schulz@free-electrons.com> | 2016-06-13 13:45:48 +0200 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2016-06-17 18:48:59 +0530 |
| commit | 5cf700ac9d50353dc5b8194a57c6f40bf1fc4424 (patch) | |
| tree | 2804c5a30e4d8cc26cdbbc82b66fbf720824db62 /drivers/phy | |
| parent | 075adb8046532d9642f411a92b4f385d04ced24d (diff) | |
| download | linux-0-day-5cf700ac9d50353dc5b8194a57c6f40bf1fc4424.tar.gz linux-0-day-5cf700ac9d50353dc5b8194a57c6f40bf1fc4424.tar.xz | |
phy: phy-sun4i-usb: Fix optional gpios failing probe
The interrupt 0 is not a valid interrupt number. In the event where the
retrieval of the vbus-det gpio would return null, the gpiod_to_irq
callback would return 0, while the current code makes the assumption
that it is a valid interrupt, and would go on calling request_irq.
Obviously, this would fail, preventing the driver from probing properly,
while the vbus and id gpios are optional.
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/phy-sun4i-usb.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c index bae54f7a1f487..45f01d6c9ed22 100644 --- a/drivers/phy/phy-sun4i-usb.c +++ b/drivers/phy/phy-sun4i-usb.c @@ -645,11 +645,11 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) data->id_det_irq = gpiod_to_irq(data->id_det_gpio); data->vbus_det_irq = gpiod_to_irq(data->vbus_det_gpio); - if ((data->id_det_gpio && data->id_det_irq < 0) || - (data->vbus_det_gpio && data->vbus_det_irq < 0)) + if ((data->id_det_gpio && data->id_det_irq <= 0) || + (data->vbus_det_gpio && data->vbus_det_irq <= 0)) data->phy0_poll = true; - if (data->id_det_irq >= 0) { + if (data->id_det_irq > 0) { ret = devm_request_irq(dev, data->id_det_irq, sun4i_usb_phy0_id_vbus_det_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, @@ -660,7 +660,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev) } } - if (data->vbus_det_irq >= 0) { + if (data->vbus_det_irq > 0) { ret = devm_request_irq(dev, data->vbus_det_irq, sun4i_usb_phy0_id_vbus_det_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |