From 9a901f5495e26e691c7d0ea7b6057a2f3e6330ed Mon Sep 17 00:00:00 2001 From: Vishal Verma Date: Mon, 5 Dec 2016 17:00:37 -0700 Subject: [PATCH] acpi, nfit: fix extended status translations for ACPI DSMs 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: Fixes: 11294d63ac91 ("nfit: fail DSMs that return non-zero status by default") Signed-off-by: Vishal Verma Signed-off-by: Dan Williams --- drivers/acpi/nfit/core.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 71a7d07c28c944..60acbb1d159c2e 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; }