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drm/xe/reg_sr: Fix leak on xa_store failure

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Free the newly allocated entry when xa_store() fails to avoid a memory
leak on the error path.

v2: use goto fail_free. (Bala)

Fixes: e5283bd4df ("drm/xe/reg_sr: Remove register pool")
Cc: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260204172810.1486719-2-shuicheng.lin@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit 6bc6fec71ac45f52db609af4e62bdb96b9f5fadb)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Shuicheng Lin 2026-02-04 17:28:11 +00:00 • committed by Rodrigo Vivi
parent 89865e6dc8
commit 3091723785
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GPG key ID: FA625F640EEB13CA
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/xe/xe_reg_sr.c
View file

@ -98,10 +98,12 @@ int xe_reg_sr_add(struct xe_reg_sr *sr,
*pentry = *e;
ret = xa_err(xa_store(&sr->xa, idx, pentry, GFP_KERNEL));
if (ret)
goto fail;
goto fail_free;
return 0;
fail_free:
kfree(pentry);
fail:
xe_gt_err(gt,
"discarding save-restore reg %04lx (clear: %08x, set: %08x, masked: %s, mcr: %s): ret=%d\n",