From: Lu Baolu Date: Thu, 5 Oct 2017 08:21:43 +0000 (+0300) Subject: usb: xhci: Return error when host is dead in xhci_disable_slot() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9e99614575b9f1e66249729878a415b9b6659ee7;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git usb: xhci: Return error when host is dead in xhci_disable_slot() [ Upstream commit dcabc76fa9361186e6b88c30a68db8fa9d5b4a1c ] xhci_disable_slot() is a helper for disabling a slot when a device goes away or recovers from error situations. Currently, it returns success when it sees a dead host. This is not the right way to go. It should return error and let the invoker know that disable slot command was failed due to a dead host. Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().") Cc: Guoqing Zhang Signed-off-by: Lu Baolu Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 51535ba2bcd4..e5677700dea4 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -3583,10 +3583,9 @@ int xhci_disable_slot(struct xhci_hcd *xhci, struct xhci_command *command, state = readl(&xhci->op_regs->status); if (state == 0xffffffff || (xhci->xhc_state & XHCI_STATE_DYING) || (xhci->xhc_state & XHCI_STATE_HALTED)) { - xhci_free_virt_device(xhci, slot_id); spin_unlock_irqrestore(&xhci->lock, flags); kfree(command); - return ret; + return -ENODEV; } ret = xhci_queue_slot_control(xhci, command, TRB_DISABLE_SLOT,