platform/x86/intel/ifs: Initialize union ifs_status to zero

If the IFS scan test exits prematurely due to a timeout before
completing a single run, the union ifs_status remains uninitialized,
leading to incorrect test status reporting. To prevent this, always
initialize the union ifs_status to zero.

Fixes: 2b40e65 ("platform/x86/intel/ifs: Add scan test support")
Suggested-by: Ilpo Järvinen <[email protected]>
Reviewed-by: Jithu Joseph <[email protected]>
Reviewed-by: Ashok Raj <[email protected]>
Signed-off-by: Kuppuswamy Sathyanarayanan <[email protected]>
Link: https://lore.kernel.org/r/20240730155930.1754744-1-sathyanarayanan.kuppuswamy@linux.intel.com
Reviewed-by: Ilpo Järvinen <[email protected]>
Signed-off-by: Ilpo Järvinen <[email protected]>

Author: Kuppuswamy Sathyanarayanan

drivers/platform/x86/intel/ifs/runtest.c

@@ -221,8 +221,8 @@ static int doscan(void *data)
  */
 static void ifs_test_core(int cpu, struct device *dev)
 {
+	union ifs_status status = {};
 	union ifs_scan activate;
-	union ifs_status status;
 	unsigned long timeout;
 	struct ifs_data *ifsd;
 	int to_start, to_stop;