[lvc-project] [PATCH] asus-laptop: Fix an uninitialized variable

[Denis Arefev]

The value returned by the acpi_evaluate_integer() function is not
checked, but the result is not always successful, so an uninitialized
'val' variable may be used in calculations.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: b23910c2194e ("asus-laptop: Pegatron Lucid accelerometer")
Cc: stable at vger.kernel.org 
Signed-off-by: Denis Arefev <arefev at swemel.ru>
---
 drivers/platform/x86/asus-laptop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index d460dd194f19..b74b7d0eb6c2 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -427,7 +427,7 @@ static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable)
 static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method)
 {
 	int i, delta;
-	unsigned long long val;
+	unsigned long long val = PEGA_ACC_CLAMP;
 	for (i = 0; i < PEGA_ACC_RETRIES; i++) {
 		acpi_evaluate_integer(asus->handle, method, NULL, &val);
 
-- 
2.43.0