Merge branch 'for-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata

Pull libata fixes from Tejun Heo:
 "Late fixes for libata. There's a minor platform driver fix but the
  important one is READ LOG PAGE.

  This is a new ATA command which is used to test some optional features
  but it broke probing of some devices - they locked up instead of
  failing the unknown command.

  Christoph tried blacklisting, but, after finding out there are
  multiple devices which fail this way, backed off to testing feature
  bit in IDENTIFY data first, which is a bit lossy (we can miss features
  on some devices) but should be a lot safer"

* 'for-4.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  Revert "libata: quirk read log on no-name M.2 SSD"
  libata: check for trusted computing in IDENTIFY DEVICE data
  libata: quirk read log on no-name M.2 SSD
  sata: ahci-da850: Fix some error handling paths in 'ahci_da850_probe()'

3 files changed, 18 insertions, 3 deletions

diff --git a/drivers/ata/ahci_da850.c b/drivers/ata/ahci_da850.c
index 1a50cd3b4233..9b34dff64536 100644
--- a/drivers/ata/ahci_da850.c
+++ b/drivers/ata/ahci_da850.c
@@ -216,12 +216,16 @@ static int ahci_da850_probe(struct platform_device *pdev)
 		return rc;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!res)
+	if (!res) {
+		rc = -ENODEV;
 		goto disable_resources;
+	}
 
 	pwrdn_reg = devm_ioremap(dev, res->start, resource_size(res));
-	if (!pwrdn_reg)
+	if (!pwrdn_reg) {
+		rc = -ENOMEM;
 		goto disable_resources;
+	}
 
 	da850_sata_init(dev, pwrdn_reg, hpriv->mmio, mpy);
 
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index fa7dd4394c02..1945a8ea2099 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2411,6 +2411,9 @@ static void ata_dev_config_trusted(struct ata_device *dev)
 	u64 trusted_cap;
 	unsigned int err;
 
+	if (!ata_id_has_trusted(dev->id))
+		return;
+
 	if (!ata_identify_page_supported(dev, ATA_LOG_SECURITY)) {
 		ata_dev_warn(dev,
 			     "Security Log not supported\n");
diff --git a/include/linux/ata.h b/include/linux/ata.h
index e65ae4b2ed48..c7a353825450 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -60,7 +60,8 @@ enum {
 	ATA_ID_FW_REV		= 23,
 	ATA_ID_PROD		= 27,
 	ATA_ID_MAX_MULTSECT	= 47,
-	ATA_ID_DWORD_IO		= 48,
+	ATA_ID_DWORD_IO		= 48,	/* before ATA-8 */
+	ATA_ID_TRUSTED		= 48,	/* ATA-8 and later */
 	ATA_ID_CAPABILITY	= 49,
 	ATA_ID_OLD_PIO_MODES	= 51,
 	ATA_ID_OLD_DMA_MODES	= 52,
@@ -889,6 +890,13 @@ static inline bool ata_id_has_dword_io(const u16 *id)
 	return id[ATA_ID_DWORD_IO] & (1 << 0);
 }
 
+static inline bool ata_id_has_trusted(const u16 *id)
+{
+	if (ata_id_major_version(id) <= 7)
+		return false;
+	return id[ATA_ID_TRUSTED] & (1 << 0);
+}
+
 static inline bool ata_id_has_unload(const u16 *id)
 {
 	if (ata_id_major_version(id) >= 7 &&