Merge: crypto: iaa - Fix incorrect return value in save_iaa_wq()

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/7657

JIRA: https://issues.redhat.com/browse/RHEL-132475

```
commit 76ce17f
Author: Zilin Guan <zilin@seu.edu.cn>
Date:   Sun Nov 9 14:56:48 2025 +0000

    crypto: iaa - Fix incorrect return value in save_iaa_wq()

    The save_iaa_wq() function unconditionally returns 0, even when an error
    is encountered. This prevents the error code from being propagated to the
    caller.

    Fix this by returning the 'ret' variable, which holds the actual status
    of the operations within the function.

    Fixes: ea7a5cb ("crypto: iaa - Add Intel IAA Compression Accelerator crypto driver core")
    Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
```

Signed-off-by: CKI Backport Bot <cki-ci-bot+cki-gitlab-backport-bot@redhat.com>

---

<small>Created 2025-12-01 23:01 UTC by backporter - [KWF FAQ](https://red.ht/kernel_workflow_doc) - [Slack #team-kernel-workflow](https://redhat-internal.slack.com/archives/C04LRUPMJQ5) - [Source](https://gitlab.com/cki-project/kernel-workflow/-/blob/main/webhook/utils/backporter.py) - [Documentation](https://gitlab.com/cki-project/kernel-workflow/-/blob/main/docs/README.backporter.md) - [Report an issue](https://issues.redhat.com/secure/CreateIssueDetails!init.jspa?pid=12334433&issuetype=1&priority=4&summary=backporter+webhook+issue&components=kernel-workflow+/+backporter)</small>

Approved-by: Vladis Dronov <vdronov@redhat.com>
Approved-by: Ondrej Mosnáček <omosnacek@gmail.com>
Approved-by: Herbert Xu <zxu@redhat.com>
Approved-by: Tony Camuso <tcamuso@redhat.com>
Approved-by: CKI KWF Bot <cki-ci-bot+kwf-gitlab-com@redhat.com>

Merged-by: CKI GitLab Kmaint Pipeline Bot <26919896-cki-kmaint-pipeline-bot@users.noreply.gitlab.com>

Author: CKI KWF Bot

drivers/crypto/intel/iaa/iaa_crypto_main.c

@@ -807,7 +807,7 @@ static int save_iaa_wq(struct idxd_wq *wq)
 	if (!cpus_per_iaa)
 		cpus_per_iaa = 1;
 out:
-	return 0;
+	return ret;
 }
 
 static void remove_iaa_wq(struct idxd_wq *wq)