diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index d37ab6087f2f..04db0f2c683a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4938,8 +4938,8 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
 		if (qc->result_tf.status & ATA_SENSE &&
 		    ((ata_is_ncq(qc->tf.protocol) &&
 		      dev->flags & ATA_DFLAG_CDL_ENABLED) ||
-		     (!(ata_is_ncq(qc->tf.protocol) &&
-			ata_id_sense_reporting_enabled(dev->id))))) {
+		     (!ata_is_ncq(qc->tf.protocol) &&
+		      ata_id_sense_reporting_enabled(dev->id)))) {
 			/*
 			 * Tell SCSI EH to not overwrite scmd->result even if
 			 * this command is finished with result SAM_STAT_GOOD.
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 6ab294322e79..314eaa167954 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -529,7 +529,8 @@ static void data_xfer(struct work_struct *work)
 	/* dma_request_channel may sleep, so calling from process context */
 	acdev->dma_chan = dma_request_chan(acdev->host->dev, "data");
 	if (IS_ERR(acdev->dma_chan)) {
-		dev_err(acdev->host->dev, "Unable to get dma_chan\n");
+		dev_err_probe(acdev->host->dev, PTR_ERR(acdev->dma_chan),
+			      "Unable to get dma_chan\n");
 		acdev->dma_chan = NULL;
 		goto chan_request_fail;
 	}
diff --git a/drivers/ata/pata_ns87415.c b/drivers/ata/pata_ns87415.c
index d60e1f69d7b0..c697219a61a2 100644
--- a/drivers/ata/pata_ns87415.c
+++ b/drivers/ata/pata_ns87415.c
@@ -260,7 +260,7 @@ static u8 ns87560_check_status(struct ata_port *ap)
  *	LOCKING:
  *	Inherited from caller.
  */
-void ns87560_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
+static void ns87560_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
 {
 	struct ata_ioports *ioaddr = &ap->ioaddr;
 
diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
index ff538b858928..2884acfc4863 100644
--- a/drivers/ata/pata_octeon_cf.c
+++ b/drivers/ata/pata_octeon_cf.c
@@ -815,8 +815,8 @@ static int octeon_cf_probe(struct platform_device *pdev)
 	irq_handler_t irq_handler = NULL;
 	void __iomem *base;
 	struct octeon_cf_port *cf_port;
-	int rv = -ENOMEM;
 	u32 bus_width;
+	int rv;
 
 	node = pdev->dev.of_node;
 	if (node == NULL)
@@ -893,12 +893,12 @@ static int octeon_cf_probe(struct platform_device *pdev)
 	cs0 = devm_ioremap(&pdev->dev, res_cs0->start,
 				   resource_size(res_cs0));
 	if (!cs0)
-		return rv;
+		return -ENOMEM;
 
 	/* allocate host */
 	host = ata_host_alloc(&pdev->dev, 1);
 	if (!host)
-		return rv;
+		return -ENOMEM;
 
 	ap = host->ports[0];
 	ap->private_data = cf_port;