From: Apoorva Singh <[email protected]> Ensure GEM_BUG_ON verifies at least one engine supports migration. Additionally, it prevents passing an uninitialized variable to intel_context_create().
Cc: Chris Wilson <[email protected]> Signed-off-by: Apoorva Singh <[email protected]> --- drivers/gpu/drm/i915/gt/intel_migrate.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_migrate.c b/drivers/gpu/drm/i915/gt/intel_migrate.c index 6f7af4077135..528a7cba3623 100644 --- a/drivers/gpu/drm/i915/gt/intel_migrate.c +++ b/drivers/gpu/drm/i915/gt/intel_migrate.c @@ -296,6 +296,9 @@ static struct intel_context *__migrate_engines(struct intel_gt *gt) engines[count++] = engine; } + /* At least one engine must support migration! */ + GEM_BUG_ON(!count); + return intel_context_create(engines[random_index(count)]); } -- 2.34.1
