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USB: xhci: Don't oops if the host doesn't halt.

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Signed-off-by: Sarah Sharp <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Sarah Sharp 2009-07-27 12:03:50 -07:00 • committed by Greg Kroah-Hartman
commit d3512f6349
1 changed files with 4 additions and 1 deletions
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5
drivers/usb/host/xhci-hcd.c
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@ -103,7 +103,10 @@ int xhci_reset(struct xhci_hcd *xhci)
u32 state;
state = xhci_readl(xhci, &xhci->op_regs->status);
BUG_ON((state & STS_HALT) == 0);
if ((state & STS_HALT) == 0) {
xhci_warn(xhci, "Host controller not halted, aborting reset.\n");
return 0;
}
xhci_dbg(xhci, "// Reset the HC\n");
command = xhci_readl(xhci, &xhci->op_regs->command);