From mboxrd@z Thu Jan  1 00:00:00 1970
From: Claude Code Review Bot <claude-review@example.com>
To: dri-devel-reviews@example.com
Subject: Claude review: nouveau/gsp/rm/alloc: Cleanup IS_ERR_OR_NULL usage
Date: Thu, 04 Jun 2026 14:22:54 +1000
Message-ID: <review-patch3-20260601095403.228220-4-zenghongling@kylinos.cn>
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References: <20260601095403.228220-1-zenghongling@kylinos.cn> <20260601095403.228220-4-zenghongling@kylinos.cn>
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Patch Review

**Already applied on drm-next.** The change is correct:

```c
 	rpc =3D nvkm_gsp_rpc_get(gsp, NV_VGPU_MSG_FUNCTION_FREE, sizeof(*rpc));
-	if (WARN_ON(IS_ERR_OR_NULL(rpc)))
+	if (WARN_ON(IS_ERR(rpc)))
 		return -EIO;
```

`nvkm_gsp_rpc_get()` wraps `r535_gsp_rpc_get()`, which returns `ERR_CAST(rp=
c)` on error or `rpc->data` on success =E2=80=94 never NULL.

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