[PATCH] drm/xe: fix error handling in xe_migrate_update_pgtables
Thomas Hellström
thomas.hellstrom at linux.intel.com
Thu Jun 20 13:11:28 UTC 2024
On Thu, 2024-06-20 at 11:20 +0100, Matthew Auld wrote:
> Don't call drm_suballoc_free with sa_bo pointing to PTR_ERR.
>
> References:
> https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2120
> Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel
> GPUs")
> Signed-off-by: Matthew Auld <matthew.auld at intel.com>
> Cc: Thomas Hellström <thomas.hellstrom at linux.intel.com>
> Cc: Matthew Brost <matthew.brost at intel.com>
> Cc: <stable at vger.kernel.org> # v6.8+
LGTM.
Reviewed-by: Thomas Hellström <thomas.hellstrom at linux.intel.com>
> ---
> drivers/gpu/drm/xe/xe_migrate.c | 8 ++++----
> 1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/xe/xe_migrate.c
> b/drivers/gpu/drm/xe/xe_migrate.c
> index 05f933787860..c9f5673353ee 100644
> --- a/drivers/gpu/drm/xe/xe_migrate.c
> +++ b/drivers/gpu/drm/xe/xe_migrate.c
> @@ -1358,7 +1358,7 @@ xe_migrate_update_pgtables(struct xe_migrate
> *m,
> GFP_KERNEL, true,
> 0);
> if (IS_ERR(sa_bo)) {
> err = PTR_ERR(sa_bo);
> - goto err;
> + goto err_bb;
> }
>
> ppgtt_ofs = NUM_KERNEL_PDE +
> @@ -1406,7 +1406,7 @@ xe_migrate_update_pgtables(struct xe_migrate
> *m,
> update_idx);
> if (IS_ERR(job)) {
> err = PTR_ERR(job);
> - goto err_bb;
> + goto err_sa;
> }
>
> /* Wait on BO move */
> @@ -1458,10 +1458,10 @@ xe_migrate_update_pgtables(struct xe_migrate
> *m,
>
> err_job:
> xe_sched_job_put(job);
> +err_sa:
> + drm_suballoc_free(sa_bo, NULL);
> err_bb:
> xe_bb_free(bb, NULL);
> -err:
> - drm_suballoc_free(sa_bo, NULL);
> return ERR_PTR(err);
> }
>
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