diff options
author | Felipe Balbi <balbi@ti.com> | 2013-02-25 21:11:50 +0200 |
---|---|---|
committer | Felipe Balbi <balbi@ti.com> | 2013-03-04 09:33:27 +0200 |
commit | 7597a49b1e984bfb9930f832af963de1120d30e4 (patch) | |
tree | 5ff2ed6f1d97b7c198e38e31898237977984c370 /drivers/usb/gadget/s3c2410_udc.c | |
parent | 56aa45adcc5b793369e535a4b7177f1c7314b577 (diff) | |
download | op-kernel-dev-7597a49b1e984bfb9930f832af963de1120d30e4.zip op-kernel-dev-7597a49b1e984bfb9930f832af963de1120d30e4.tar.gz |
usb: gadget: s3c2410: fix gadget->dev registration
Whenever ->udc_start() gets called, gadget driver
has already being bound to the udc controller, which
means that gadget->dev had to be already initialized
and added to driver model.
This patch fixes s3c2410 mistake.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/s3c2410_udc.c')
-rw-r--r-- | drivers/usb/gadget/s3c2410_udc.c | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index fc07b43..9404858 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -1669,7 +1669,6 @@ static int s3c2410_udc_start(struct usb_gadget *g, struct usb_gadget_driver *driver) { struct s3c2410_udc *udc = to_s3c2410(g) - int retval; dprintk(DEBUG_NORMAL, "%s() '%s'\n", __func__, driver->driver.name); @@ -1677,22 +1676,10 @@ static int s3c2410_udc_start(struct usb_gadget *g, udc->driver = driver; udc->gadget.dev.driver = &driver->driver; - /* Bind the driver */ - retval = device_add(&udc->gadget.dev); - if (retval) { - dev_err(&udc->gadget.dev, "Error in device_add() : %d\n", retval); - goto register_error; - } - /* Enable udc */ s3c2410_udc_enable(udc); return 0; - -register_error: - udc->driver = NULL; - udc->gadget.dev.driver = NULL; - return retval; } static int s3c2410_udc_stop(struct usb_gadget *g, @@ -1700,7 +1687,6 @@ static int s3c2410_udc_stop(struct usb_gadget *g, { struct s3c2410_udc *udc = to_s3c2410(g); - device_del(&udc->gadget.dev); udc->driver = NULL; /* Disable udc */ @@ -1842,6 +1828,13 @@ static int s3c2410_udc_probe(struct platform_device *pdev) udc->gadget.dev.parent = &pdev->dev; udc->gadget.dev.dma_mask = pdev->dev.dma_mask; + /* Bind the driver */ + retval = device_add(&udc->gadget.dev); + if (retval) { + dev_err(&udc->gadget.dev, "Error in device_add() : %d\n", retval); + goto err_device_add; + } + the_controller = udc; platform_set_drvdata(pdev, udc); @@ -1930,6 +1923,8 @@ err_gpio_claim: err_int: free_irq(IRQ_USBD, udc); err_map: + device_unregister(&udc->gadget.dev); +err_device_add: iounmap(base_addr); err_mem: release_mem_region(rsrc_start, rsrc_len); @@ -1947,10 +1942,11 @@ static int s3c2410_udc_remove(struct platform_device *pdev) dev_dbg(&pdev->dev, "%s()\n", __func__); - usb_del_gadget_udc(&udc->gadget); if (udc->driver) return -EBUSY; + usb_del_gadget_udc(&udc->gadget); + device_unregister(&udc->gadget.dev); debugfs_remove(udc->regs_info); if (udc_info && !udc_info->udc_command && |