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fb22ae6c7e
ci_udc.c's usb_gadget_unregister_driver() doesn't call driver->unbind() unlike other USB gadget drivers. Fix it to do this. Without this, when ether.c's CDC Ethernet device is torn down, eth_unbind() is never called, so dev->gadget is never set to NULL. For some reason, usb_eth_halt() is called both at the end of the first use of the Ethernet device, and prior to any subsequent use. Since dev->gadget is never cleared, all calls to usb_eth_halt() attempt to stop, disconnect, and clean up the device, resulting in double cleanup, which hangs U-Boot on my Tegra device at least. ci_udc allocates its own singleton EP0 request object, and cleans it up during usb_gadget_unregister_driver(). This appears necessary when using the USB gadget framework in U-Boot, since that does not allocate/free the EP0 request. However, the CDC Ethernet driver *does* allocate and free its own EP0 requests. Consequently, we must protect ci_ep_free_request() against double-freeing the request. Signed-off-by: Stephen Warren <swarren@nvidia.com> |
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| .. | ||
| atmel_usba_udc.c | ||
| atmel_usba_udc.h | ||
| ci_udc.c | ||
| ci_udc.h | ||
| composite.c | ||
| config.c | ||
| core.c | ||
| designware_udc.c | ||
| ep0.c | ||
| ep0.h | ||
| epautoconf.c | ||
| ether.c | ||
| f_dfu.c | ||
| f_dfu.h | ||
| f_fastboot.c | ||
| f_mass_storage.c | ||
| f_thor.c | ||
| f_thor.h | ||
| fotg210.c | ||
| g_dnl.c | ||
| gadget_chips.h | ||
| Makefile | ||
| mpc8xx_udc.c | ||
| ndis.h | ||
| omap1510_udc.c | ||
| pxa25x_udc.c | ||
| pxa25x_udc.h | ||
| pxa27x_udc.c | ||
| regs-otg.h | ||
| rndis.c | ||
| rndis.h | ||
| s3c_udc_otg.c | ||
| s3c_udc_otg_xfer_dma.c | ||
| storage_common.c | ||
| usbstring.c | ||