[PATCH v2] drm/xe: Default auto_link_downgrade status to false

[Aradhya Bhatia]

xe_pcode_read() can return back successfully without updating the
variable 'val'. This can cause an arbitrary value to show up in the
sysfs file.

Allow the auto_link_downgrade_status to default to 0 to avoid any
arbitrary value from coming up.

Fixes: 0e414bf7ad01 ("drm/xe: Expose PCIe link downgrade attributes")
Reviewed-by: Tejas Upadhyay <tejas.upadhyay at intel.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia at intel.com>
---
Changes in v2:
  - Reword the commit description. (Tejas)
  - Add Tejas Upadhyay's R-b tag.

---
 drivers/gpu/drm/xe/xe_device_sysfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_device_sysfs.c b/drivers/gpu/drm/xe/xe_device_sysfs.c
index 9628e9a0a0af..2e657692e5b5 100644
--- a/drivers/gpu/drm/xe/xe_device_sysfs.c
+++ b/drivers/gpu/drm/xe/xe_device_sysfs.c
@@ -124,7 +124,8 @@ auto_link_downgrade_status_show(struct device *dev, struct device_attribute *att
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct xe_device *xe = pdev_to_xe_device(pdev);
-	u32 val;
+	/* default the auto_link_downgrade status to 0 */
+	u32 val = 0;
 	int ret;
 
 	xe_pm_runtime_get(xe);

base-commit: bf8c2c7bea6b5a38b6a3c24fdfc72b1ab5c03c28
-- 
2.43.0