[PATCH 6.18 244/314] drm/xe/configfs: Free ctx_restore_mid_bb in release

Sasha Levin
2026-03-10T11:29:16Z

From: Shuicheng Lin <shuicheng.lin@intel.com>

[ Upstream commit e377182f0266f46f02d01838e6bde67b9dac0d66 ]

ctx_restore_mid_bb memory is allocated in wa_bb_store(), but
xe_config_device_release() only frees ctx_restore_post_bb.

Free ctx_restore_mid_bb[0].cs as well to avoid leaking the allocation
when the configfs device is removed.

Fixes: b30d5de3d40c ("drm/xe/configfs: Add mid context restore bb")
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Nitin Gote <nitin.r.gote@intel.com>
Link: https://patch.msgid.link/20260225013448.3547687-2-shuicheng.lin@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit a235e7d0098337c3f2d1e8f3610c719a589e115f)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/xe/xe_configfs.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/xe/xe_configfs.c b/drivers/gpu/drm/xe/xe_configfs.c
index 6688b2954d20b..08f379cb5321f 100644
--- a/drivers/gpu/drm/xe/xe_configfs.c
+++ b/drivers/gpu/drm/xe/xe_configfs.c
@@ -688,6 +688,7 @@ static void xe_config_device_release(struct config_item *item)

mutex_destroy(&dev->lock);

+ kfree(dev->config.ctx_restore_mid_bb[0].cs);
kfree(dev->config.ctx_restore_post_bb[0].cs);
kfree(dev);
}
--
2.51.0