From: Hongling Zeng <zenghongling@kylinos.cn>
To: lyude@redhat.com, dakr@kernel.org,
maarten.lankhorst@linux.intel.com, mripard@kernel.org,
tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch,
airlied@redhat.com, ttabi@nvidia.com, bskeggs@nvidia.com,
dri-devel@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org,
zhongling0719@126.com, Hongling Zeng <zenghongling@kylinos.cn>
Subject: [PATCH v2 4/5] nouveau/gsp/rm/bar: Cleanup IS_ERR_OR_NULL usage
Date: Mon, 1 Jun 2026 17:54:02 +0800 [thread overview]
Message-ID: <20260601095403.228220-5-zenghongling@kylinos.cn> (raw)
In-Reply-To: <20260601095403.228220-1-zenghongling@kylinos.cn>
r535_bar_bar2_update_pde() calls nvkm_gsp_rpc_get() which never
returns NULL, only valid pointers or error pointers. Clean up by
using IS_ERR() instead, matching the actual return value contract.
Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn>
---
drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/bar.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/bar.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/bar.c
index fae08ac3b18c..9cd68f8622d3 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/bar.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/bar.c
@@ -55,7 +55,7 @@ r535_bar_bar2_update_pde(struct nvkm_gsp *gsp, u8 page_shift, u64 pdbe)
rpc_update_bar_pde_v15_00 *rpc;
rpc = nvkm_gsp_rpc_get(gsp, NV_VGPU_MSG_FUNCTION_UPDATE_BAR_PDE, sizeof(*rpc));
- if (WARN_ON(IS_ERR_OR_NULL(rpc)))
+ if (WARN_ON(IS_ERR(rpc)))
return -EIO;
rpc->info.barType = NV_RPC_UPDATE_PDE_BAR_2;
--
2.25.1
next prev parent reply other threads:[~2026-06-01 9:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-01 9:53 [PATCH v2 0/5] nouveau/gsp: Clean up IS_ERR vs IS_ERR_OR_NULL usage Hongling Zeng
2026-06-01 9:53 ` [PATCH v2 1/5] nouveau/gsp/rpc: Document RPC function return value contracts Hongling Zeng
2026-06-04 4:22 ` Claude review: " Claude Code Review Bot
2026-06-01 9:54 ` [PATCH v2 2/5] nouveau/gsp/rpc: Cleanup incorrect IS_ERR_OR_NULL in rpc.c Hongling Zeng
2026-06-04 4:22 ` Claude review: " Claude Code Review Bot
2026-06-01 9:54 ` [PATCH v2 3/5] nouveau/gsp/rm/alloc: Cleanup IS_ERR_OR_NULL usage Hongling Zeng
2026-06-04 4:22 ` Claude review: " Claude Code Review Bot
2026-06-01 9:54 ` Hongling Zeng [this message]
2026-06-04 4:22 ` Claude review: nouveau/gsp/rm/bar: " Claude Code Review Bot
2026-06-01 9:54 ` [PATCH v2 5/5] nouveau/gsp: Cleanup IS_ERR_OR_NULL in nvkm_gsp_rpc_rd() Hongling Zeng
2026-06-04 4:22 ` Claude review: " Claude Code Review Bot
2026-06-04 4:22 ` Claude review: nouveau/gsp: Clean up IS_ERR vs IS_ERR_OR_NULL usage Claude Code Review Bot
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