Peter Chen 0404e11ef5 MLK-19601-1 xhci: Fix leaking USB3 shared_hcd at xhci removal ... (Merged upstream reviewing patch, and add cdns support -- Peter Chen) Ensure that the shared_hcd pointer is valid when calling usb_put_hcd() The shared_hcd is removed and freed in xhci by first calling usb_remove_hcd(xhci->shared_hcd), and later usb_put_hcd(xhci->shared_hcd) Afer commit fe190ed0d6 ("xhci: Do not halt the host until both HCD have disconnected their devices.") the shared_hcd was never properly put as xhci->shared_hcd was set to NULL before usb_put_hcd(xhci->shared_hcd) was called. shared_hcd (USB3) is removed before primary hcd (USB2). While removing the primary hcd we might need to handle xhci interrupts to cleanly remove last USB2 devices, therefore we need to set xhci->shared_hcd to NULL before removing the primary hcd to let xhci interrupt handler know shared_hcd is no longer available. xhci-plat.c, cdns/host.c first create both their hcd's before adding them. so to keep the correct reverse removal order use a temporary shared_hcd variable for them. For more details see commit 4ac53087d6 ("usb: xhci: plat: Create both HCDs before adding them") Fixes: fe190ed0d6 ("xhci: Do not halt the host until both HCD have disconnected their devices.") Cc: Joel Stanley <joel@jms.id.au> Cc: Chunfeng Yun <chunfeng.yun@mediatek.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Jianguo Sun <sunjianguo1@huawei.com> Cc: <stable@vger.kernel.org> Tested-by: Peter Chen <peter.chen@nxp.com> Tested-by: Jack Pham <jackp@codeaurora.org> Reported-by: Jack Pham <jackp@codeaurora.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Peter Chen <peter.chen@nxp.com>		2018-10-29 11:10:38 +08:00
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Kconfig	…
Makefile	…
cdns3-nxp-reg-def.h	MLK-18794-3 usb: cdns3: change the definition of PowerState at XECP_PM_PMCSR	2018-10-29 11:10:38 +08:00
core.c	MLK-19258-3 usb: cdns3: core: change the MODULE_ALIAS	2018-10-29 11:10:38 +08:00
core.h	MLK-18817 usb: cdns3: gadget: add mutex for role_start and role_stop	2018-10-29 11:10:38 +08:00
dev-regs-macro.h	MLK-17062 usb: cdns3: gadget: add test mode support for USB2	2018-10-29 11:10:38 +08:00
dev-regs-map.h	…
gadget-export.h	…
gadget.c	MLK-19254 usb: cdns3: gadget: set gadget state to be USB_STATE_NOTATTACHED after stop	2018-10-29 11:10:38 +08:00
gadget.h	MLK-18609-5 usb: cdns3: gadget: implement setup status completion properly	2018-10-29 11:10:38 +08:00
host-export.h	…
host.c	MLK-19601-1 xhci: Fix leaking USB3 shared_hcd at xhci removal	2018-10-29 11:10:38 +08:00
io.h	…