[PATCH] libata-dev: wait idle after reading the last data block

Some CD-ROM drives are slow to clear DRQ, after the last data block
is read by PIO. Use ata_wait_idle() after reading the last data block.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 59cb129..5fdc314 100644 (file)
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -3710,7 +3710,7 @@ fsm_start:
                            (!(qc->tf.flags & ATA_TFLAG_WRITE))) {
                                /* all data read */
                                ata_altstatus(ap);
-                               status = ata_chk_status(ap);
+                               status = ata_wait_idle(ap);
                                goto fsm_start;
                        }
                }