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-rw-r--r--drivers/scsi/st.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 203f22e816c0..11341b717bba 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -533,6 +533,28 @@ st_do_scsi(struct st_request * SRpnt, struct scsi_tape * STp, unsigned char *cmd
533 return SRpnt; 533 return SRpnt;
534} 534}
535 535
536static int st_scsi_kern_execute(struct st_request *streq,
537 const unsigned char *cmd, int data_direction,
538 void *buffer, unsigned bufflen, int timeout,
539 int retries)
540{
541 struct scsi_tape *stp = streq->stp;
542 int ret, resid;
543
544 stp->buffer->cmdstat.have_sense = 0;
545 memcpy(streq->cmd, cmd, sizeof(streq->cmd));
546
547 ret = scsi_execute(stp->device, cmd, data_direction, buffer, bufflen,
548 streq->sense, timeout, retries, 0, &resid);
549 if (driver_byte(ret) & DRIVER_ERROR)
550 return -EBUSY;
551
552 stp->buffer->cmdstat.midlevel_result = streq->result = ret;
553 stp->buffer->cmdstat.residual = resid;
554 stp->buffer->syscall_result = st_chk_result(stp, streq);
555
556 return 0;
557}
536 558
537/* Handle the write-behind checking (waits for completion). Returns -ENOSPC if 559/* Handle the write-behind checking (waits for completion). Returns -ENOSPC if
538 write has been correct but EOM early warning reached, -EIO if write ended in 560 write has been correct but EOM early warning reached, -EIO if write ended in