| From | Kamal Mostafa <> | Subject | [PATCH 3.19.y-ckt 49/86] usb: xhci: Clear XHCI_STATE_DYING on start | Date | Tue, 27 Oct 2015 14:29:49 -0700 |
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3.19.8-ckt9 -stable review patch. If anyone has any objections, please let me know.
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From: Roger Quadros <rogerq@ti.com>
commit e5bfeab0ad515b4f6df39fe716603e9dc6d3dfd0 upstream.
For whatever reason if XHCI died in the previous instant then it will never recover on the next xhci_start unless we clear the DYING flag.
Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/usb/host/xhci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 0c4ea93..0dfda9e 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -147,7 +147,8 @@ static int xhci_start(struct xhci_hcd *xhci) "waited %u microseconds.\n", XHCI_MAX_HALT_USEC); if (!ret) - xhci->xhc_state &= ~XHCI_STATE_HALTED; + xhci->xhc_state &= ~(XHCI_STATE_HALTED | XHCI_STATE_DYING); + return ret; } -- 1.9.1
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