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drm/xe: Default auto_link_downgrade status to false

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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: 0e414bf7ad ("drm/xe: Expose PCIe link downgrade attributes")
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@intel.com>
Link: https://lore.kernel.org/r/20250516124355.4872-1-aradhya.bhatia@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
This commit is contained in:
Aradhya Bhatia
2025-05-16 12:43:55 +00:00
committed by Matt Roper
parent 17486cf3df
commit a7f87deac2
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/xe/xe_device_sysfs.c
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@@ -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);