[PATCH 5/7] usb: gadget: pxa25x_udc: fix deferred probe from __init

From: Johan Hovold
Date: Mon Sep 23 2013 - 10:28:36 EST


Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
this driver might return -EPROBE_DEFER if a gpio_request fails.

Cc: Eric Miao <eric.y.miao@xxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
Cc: Haojian Zhuang <haojian.zhuang@xxxxxxxxx>
Cc: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx>
---
drivers/usb/gadget/pxa25x_udc.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index cc92074..0ac6064 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -2054,7 +2054,7 @@ static struct pxa25x_udc memory = {
/*
* probe - binds to the platform device
*/
-static int __init pxa25x_udc_probe(struct platform_device *pdev)
+static int pxa25x_udc_probe(struct platform_device *pdev)
{
struct pxa25x_udc *dev = &memory;
int retval, irq;
@@ -2203,7 +2203,7 @@ static void pxa25x_udc_shutdown(struct platform_device *_dev)
pullup_off();
}

-static int __exit pxa25x_udc_remove(struct platform_device *pdev)
+static int pxa25x_udc_remove(struct platform_device *pdev)
{
struct pxa25x_udc *dev = platform_get_drvdata(pdev);

@@ -2294,7 +2294,8 @@ static int pxa25x_udc_resume(struct platform_device *dev)

static struct platform_driver udc_driver = {
.shutdown = pxa25x_udc_shutdown,
- .remove = __exit_p(pxa25x_udc_remove),
+ .probe = pxa25x_udc_probe,
+ .remove = pxa25x_udc_remove,
.suspend = pxa25x_udc_suspend,
.resume = pxa25x_udc_resume,
.driver = {
@@ -2303,7 +2304,7 @@ static struct platform_driver udc_driver = {
},
};

-module_platform_driver_probe(udc_driver, pxa25x_udc_probe);
+module_platform_driver(udc_driver);

MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR("Frank Becker, Robert Schwebel, David Brownell");
--
1.8.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/