linux-kernel - [PATCH 1/2] hp-wmi: Fix error value for hp_wmi_tablet

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Date:   Sun,  9 Apr 2017 15:56:07 +0200
From:   Carlo Caione <carlo@...one.org>
To:     dvhart@...radead.org, andy@...radead.org,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux@...lessm.com
Cc:     Carlo Caione <carlo@...lessm.com>
Subject: [PATCH 1/2] hp-wmi: Fix error value for hp_wmi_tablet_state

From: Carlo Caione <carlo@...lessm.com>

hp_wmi_tablet_state() fails to return the correct error code when
hp_wmi_perform_query() returns the HP WMI query specific error code
that is a positive value.

Signed-off-by: Carlo Caione <carlo@...lessm.com>
---
 drivers/platform/x86/hp-wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 96ffda4..13ba65c 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -290,7 +290,7 @@ static int hp_wmi_tablet_state(void)
 	int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
 				       sizeof(state), sizeof(state));
 	if (ret)
-		return ret;
+		return -EINVAL;
 
 	return (state & 0x4) ? 1 : 0;
 }
-- 
2.9.3