[PATCH 3/5] nouveau/gsp/rm: cleanup IS_ERR_OR_NULL in core implementation

[Hongling Zeng]

Clean up IS_ERR_OR_NULL() checks in the core RPC and alloc
implementation files. The underlying functions return error pointers,
so IS_ERR() is sufficient.

This affects:
- r535_gsp_rpc_rm_free() in alloc.c
- r535_gsp_rpc_rm_alloc_push() in alloc.c
- r535_gsp_msgq_recv() in rpc.c

Signed-off-by: Hongling Zeng <zenghongling@xxxxxxxxxx>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/alloc.c | 4 ++--
 drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c   | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/alloc.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/alloc.c
index 46e3a29f2ad7..27f275d2e151 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/alloc.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/alloc.c
@@ -35,7 +35,7 @@ r535_gsp_rpc_rm_free(struct nvkm_gsp_object *object)
 		   client->object.handle, object->handle);
 
 	rpc = 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;
 
 	rpc->params.hRoot = client->object.handle;
@@ -60,7 +60,7 @@ r535_gsp_rpc_rm_alloc_push(struct nvkm_gsp_object *object, void *params)
 	void *ret = NULL;
 
 	rpc = nvkm_gsp_rpc_push(gsp, rpc, NVKM_GSP_RPC_REPLY_RECV, sizeof(*rpc));
-	if (IS_ERR_OR_NULL(rpc))
+	if (IS_ERR(rpc))
 		return rpc;
 
 	if (rpc->status) {
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c
index 3ca3de8f4340..41301f19729c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c
@@ -324,7 +324,7 @@ r535_gsp_msgq_recv(struct nvkm_gsp *gsp, u32 gsp_rpc_len, int *retries)
 		u32 size;
 
 		rpc = r535_gsp_msgq_peek(gsp, sizeof(*rpc), info.retries);
-		if (IS_ERR_OR_NULL(rpc)) {
+		if (IS_ERR(rpc)) {
 			kvfree(buf);
 			return rpc;
 		}
@@ -333,7 +333,7 @@ r535_gsp_msgq_recv(struct nvkm_gsp *gsp, u32 gsp_rpc_len, int *retries)
 		info.continuation = true;
 
 		rpc = r535_gsp_msgq_recv_one_elem(gsp, &info);
-		if (IS_ERR_OR_NULL(rpc)) {
+		if (IS_ERR(rpc)) {
 			kvfree(buf);
 			return rpc;
 		}
-- 
2.25.1