Tejun Heo wrote:
After certain errors, some devices report complete garbage on IDENTIFY. This can cause ata_dev_read_id() to fail with -EINVAL resulting in immediate disabling of the device. Give the device one last chance after -EINVAL to allow recovery from such situations. As -EINVAL is triggered very rarely, this shouldn't cause any noticeable affect on more common error paths. Signed-off-by: Tejun Heo <htejun@xxxxxxxxx> Cc: Harald Dunkel <harald.dunkel@xxxxxxxxxxx>
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