diff mbox

[v2] nfit: Fix extended status translations for ACPI DSMs

Message ID 1480982437-11567-1-git-send-email-vishal.l.verma@intel.com (mailing list archive)
State Accepted
Commit 9a901f5
Headers show

Commit Message

Verma, Vishal L Dec. 6, 2016, midnight UTC
ACPI DSMs can have an 'extended' status which can be non-zero to convey
additional information about the command. In the xlat_status routine,
where we translate the command statuses, we were returning an error for
a non-zero extended status, even if the primary status indicated success.

Return from each command's 'case' once we have verified both its status
and extend status are good.

Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
---
 drivers/acpi/nfit/core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox

Patch

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 71a7d07..60acbb1 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -113,7 +113,7 @@  static int xlat_status(void *buf, unsigned int cmd, u32 status)
 		flags = ND_ARS_PERSISTENT | ND_ARS_VOLATILE;
 		if ((status >> 16 & flags) == 0)
 			return -ENOTTY;
-		break;
+		return 0;
 	case ND_CMD_ARS_START:
 		/* ARS is in progress */
 		if ((status & 0xffff) == NFIT_ARS_START_BUSY)
@@ -122,7 +122,7 @@  static int xlat_status(void *buf, unsigned int cmd, u32 status)
 		/* Command failed */
 		if (status & 0xffff)
 			return -EIO;
-		break;
+		return 0;
 	case ND_CMD_ARS_STATUS:
 		ars_status = buf;
 		/* Command failed */
@@ -154,7 +154,7 @@  static int xlat_status(void *buf, unsigned int cmd, u32 status)
 		/* Unknown status */
 		if (status >> 16)
 			return -EIO;
-		break;
+		return 0;
 	case ND_CMD_CLEAR_ERROR:
 		clear_err = buf;
 		if (status & 0xffff)
@@ -163,7 +163,7 @@  static int xlat_status(void *buf, unsigned int cmd, u32 status)
 			return -EIO;
 		if (clear_err->length > clear_err->cleared)
 			return clear_err->cleared;
-		break;
+		return 0;
 	default:
 		break;
 	}