hp_accel: Silence an uninitialized variable warning

If acpi_evaluate_integer() fails then "lret" isn't initialized.  I've
tweaked the error handling to avoid this issue.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c
index 263002ba43eb..09356684c32f 100644
--- a/drivers/platform/x86/hp_accel.c
+++ b/drivers/platform/x86/hp_accel.c
@@ -127,8 +127,10 @@ static int lis3lv02d_acpi_read(struct lis3lv02d *lis3, int reg, u8 *ret)
         arg0.integer.value = reg;
 
         status = acpi_evaluate_integer(dev->handle, "ALRD", &args, &lret);
+        if (ACPI_FAILURE(status))
+                return -EINVAL;
         *ret = lret;
-        return (status != AE_OK) ? -EINVAL : 0;
+        return 0;
 }
 
 /**