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usb: host: xhci-plat: add a shutdown
authorRan Wang <ran.wang_1@nxp.com>
Fri, 6 Mar 2020 09:23:28 +0000 (17:23 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 12 Mar 2020 08:37:26 +0000 (09:37 +0100)
commitb433e340e7565110b0ce9ca4b3e26f4b97a1decf
tree27d9b8f2b42220e4eeb028cb82de217784b7d60d
parent081da1325d351ea8804cf74e65263ea120834f33
usb: host: xhci-plat: add a shutdown

When loading new kernel via kexec, we need to shutdown host controller to
avoid any un-expected memory accessing during new kernel boot.

Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Cc: stable <stable@vger.kernel.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/20200306092328.41253-1-ran.wang_1@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/host/xhci-plat.c