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-rw-r--r--drivers/ata/libata-scsi.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index fedf62d..c16e3ce 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2394,7 +2394,8 @@ static void atapi_request_sense(struct ata_queued_cmd *qc)
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
#ifdef CONFIG_ATA_SFF
- ap->ops->sff_tf_read(ap, &qc->tf);
+ if (ap->ops->sff_tf_read)
+ ap->ops->sff_tf_read(ap, &qc->tf);
#endif
/* fill these in, for the case where they are -not- overwritten */
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