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ahci: Add check for device presence (PCIe hot unplug) in ahci_stop_en…
…gine() Exit directly with ENODEV, if the AHCI controller is not available anymore. Otherwise a delay of 500ms for each port is added to the remove function while trying to issue a command on the non-existent controller. Signed-off-by: Stefan Roese <[email protected]> Cc: Tejun Heo <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
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