drm/xe: Fix null pointer dereference in devcoredump cleanup

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In xe_devcoredump_snapshot_free(), ss->gt may be NULL when the snapshot
was never fully populated (e.g., when cleanup is triggered without a
prior capture). Guard the xe_guc_capture_put_matched_nodes() call with
IS_ERR_OR_NULL() to prevent a null dereference.

In xe_devcoredump_free(), the deferred work is only queued when a
coredump is captured, so guard cancel_work_sync() with a check on
coredump->captured.

Signed-off-by: Zhanjun Dong <zhanjun.dong@intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Link: https://patch.msgid.link/20260326181017.2060209-1-zhanjun.dong@intel.com

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Zhanjun Dong 2026-03-26 14:10:17 -04:00 • committed by Vinay Belgaumkar

parent dc9ccf14dc

commit 12ef528d78

1 changed files with 4 additions and 2 deletions

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drivers/gpu/drm/xe/xe_devcoredump.c

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