drm/xe: Do not kill VM in PT code on -ENODATA

No need kill on -ENODATA as is this non-fatal error can occur when MMU
notifiers race with prefetches.

Fixes: 09ba0a8f06cd ("drm/xe/svm: Implement prefetch support for SVM ranges")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>>
Link: https://lore.kernel.org/r/20250613231808.752616-1-matthew.brost@intel.com

diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c
index f39d5cc9f411eaf82efad89b55d3858a7aa2d93c..971e55fd00616ab364bef5782adea5fb7d3148d8 100644 (file)
--- a/drivers/gpu/drm/xe/xe_pt.c
+++ b/drivers/gpu/drm/xe/xe_pt.c
@@ -2524,7 +2524,7 @@ free_ifence:
        kfree(mfence);
        kfree(ifence);
 kill_vm_tile1:
-       if (err != -EAGAIN && tile->id)
+       if (err != -EAGAIN && err != -ENODATA && tile->id)
                xe_vm_kill(vops->vm, false);
 
        return ERR_PTR(err);