USB: Don't resume root hub if the controller is suspended
Root hubs can't be resumed if their parent controller device is still suspended. This patch (as925) adds a check for that condition in hcd_bus_resume() and prevents it from being treated as a fatal controller failure. ehci-hcd is updated to add the corresponding test. Unnecessary debugging messages are removed from uhci-hcd and dummy-hcd. The error return code from dummy-hcd is changed to -ESHUTDOWN, the same as the others. ohci-hcd doesn't need any changes. Suspend handling in the non-PCI host drivers is somewhat hit-and-miss. This patch shouldn't have any effect on them. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Showing
Please register or sign in to comment