Merge branch 'for-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata (861d75d0) · Commits · 戴 / test

Pull libata fixes from Tejun Heo: "This is quite late but SCT Write Same support added during this cycle is broken subtly but seriously and it'd be best to disable it before v4.9 gets released. This contains two commits - one low impact sata_mv fix and the mentioned disabling of SCT Write Same" * 'for-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: libata-scsi: disable SCT Write Same for the moment ata: sata_mv: check for errors when parsing nr-ports from dt

drivers/ata/libata-scsi.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1159,6 +1159,7 @@ static void ata_scsi_sdev_config(struct scsi_device *sdev)
		{
		sdev->use_10_for_rw = 1;
		sdev->use_10_for_ms = 1;
		sdev->no_write_same = 1;

		/* Schedule policy is determined by ->qc_defer() callback and
		* it needs to see every deferred qc. Set dev_blocked to 1 to

drivers/ata/sata_mv.c

+14 −1

Original line number	Diff line number	Diff line
		@@ -4090,7 +4090,20 @@ static int mv_platform_probe(struct platform_device *pdev)

		/* allocate host */
		if (pdev->dev.of_node) {
		of_property_read_u32(pdev->dev.of_node, "nr-ports", &n_ports);
		rc = of_property_read_u32(pdev->dev.of_node, "nr-ports",
		&n_ports);
		if (rc) {
		dev_err(&pdev->dev,
		"error parsing nr-ports property: %d\n", rc);
		return rc;
		}

		if (n_ports <= 0) {
		dev_err(&pdev->dev, "nr-ports must be positive: %d\n",
		n_ports);
		return -EINVAL;
		}

		irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
		} else {
		mv_platform_data = dev_get_platdata(&pdev->dev);

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