[PATCH] libata: determine the err_mask directly in atapi_packet_task()

  - set qc->err_mask directly when we found the error
  - remove the code to determine err_mask from device status

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
============
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index cc003f2..b3aedb0 100644 (file)
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -4083,13 +4083,17 @@ static void atapi_packet_task(void *_data)
 
        /* sleep-wait for BSY to clear */
        DPRINTK("busy wait\n");
-       if (ata_busy_sleep(ap, ATA_TMOUT_CDB_QUICK, ATA_TMOUT_CDB))
-               goto err_out_status;
+       if (ata_busy_sleep(ap, ATA_TMOUT_CDB_QUICK, ATA_TMOUT_CDB)) {
+               qc->err_mask |= AC_ERR_ATA_BUS;
+               goto err_out;
+       }
 
        /* make sure DRQ is set */
        status = ata_chk_status(ap);
-       if ((status & (ATA_BUSY | ATA_DRQ)) != ATA_DRQ)
+       if ((status & (ATA_BUSY | ATA_DRQ)) != ATA_DRQ) {
+               qc->err_mask |= AC_ERR_ATA_BUS;
                goto err_out;
+       }
 
        /* send SCSI cdb */
        DPRINTK("send cdb\n");
@@ -4121,10 +4125,7 @@ static void atapi_packet_task(void *_data)
 
        return;
 
-err_out_status:
-       status = ata_chk_status(ap);
 err_out:
-       qc->err_mask |= __ac_err_mask(status);
        ata_poll_qc_complete(qc);
 }