[RFC PATCH 4/5] platform/x86: acer-wmi: Improve error handling when reading AC status

[Armin Wolf <W_Armin@gmx.de>]

If a call to ACER_WMID_GET_GAMING_SYS_INFO_METHODID fails, the lower
8 bits will be non-zero. Use WMID_gaming_get_sys_info() to check for
this when reading the AC status.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
---
 drivers/platform/x86/acer-wmi.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 7b549920eba7..6964fea84fa1 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -1951,12 +1951,9 @@ static int acer_thermal_profile_change(void)
 			return err;

 		/* Check power source */
-		status = WMI_gaming_execute_u64(
-			ACER_WMID_GET_GAMING_SYS_INFO_METHODID,
-			ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS, &on_AC);
-
-		if (ACPI_FAILURE(status))
-			return -EIO;
+		err = WMID_gaming_get_sys_info(ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS, &on_AC);
+		if (err < 0)
+			return err;

 		switch (current_tp) {
 		case ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO:
--
2.39.5