From c2cf5769fae1ce208ea00fa85298d1d19969300a Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 14 Jan 2015 19:28:33 +0800 Subject: ACPI / EC: Fix returning values in acpi_ec_sync_query() The returning value of acpi_os_execute() is erroneously handled as errno. This patch corrects it by returning EBUSY to indicate the work queue item creation failure. Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ec.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 87b9911c9039..a94ee9f7defd 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -660,14 +660,15 @@ static void acpi_ec_run(void *cxt) static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) { u8 value = 0; - int status; + int result; + acpi_status status; struct acpi_ec_query_handler *handler; - status = acpi_ec_query_unlocked(ec, &value); + result = acpi_ec_query_unlocked(ec, &value); if (data) *data = value; - if (status) - return status; + if (result) + return result; list_for_each_entry(handler, &ec->list, node) { if (value == handler->query_bit) { @@ -675,12 +676,15 @@ static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) handler = acpi_ec_get_query_handler(handler); pr_debug("##### Query(0x%02x) scheduled #####\n", handler->query_bit); - return acpi_os_execute((handler->func) ? + status = acpi_os_execute((handler->func) ? OSL_NOTIFY_HANDLER : OSL_GPE_HANDLER, acpi_ec_run, handler); + if (ACPI_FAILURE(status)) + result = -EBUSY; + break; } } - return 0; + return result; } static void acpi_ec_gpe_query(void *ec_cxt) -- cgit v1.2.3