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-rw-r--r--drivers/scsi/sym53c8xx_2/sym_glue.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index 5ff83d214f1..5b07c6ec3ec 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -2038,8 +2038,9 @@ static void sym2_set_period(struct scsi_target *starget, int period)
struct sym_hcb *np = sym_get_hcb(shost);
struct sym_tcb *tp = &np->target[starget->id];
- /* have to have DT for these transfers */
- if (period <= np->minsync)
+ /* have to have DT for these transfers, but DT will also
+ * set width, so check that this is allowed */
+ if (period <= np->minsync && spi_width(starget))
tp->tgoal.dt = 1;
tp->tgoal.period = period;