linux-kernel - [PATCH] drm/nouveau/gsp: fix mismatched alloc/free for kvmalloc()

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Message-Id: <20250811091910.404659-1-rongqianfeng@vivo.com>
Date: Mon, 11 Aug 2025 17:19:00 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: Lyude Paul <lyude@...hat.com>,
	Danilo Krummrich <dakr@...nel.org>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Dave Airlie <airlied@...hat.com>,
	Ben Skeggs <bskeggs@...dia.com>,
	Timur Tabi <ttabi@...dia.com>,
	Qianfeng Rong <rongqianfeng@...o.com>,
	Zhi Wang <zhiw@...dia.com>,
	dri-devel@...ts.freedesktop.org,
	nouveau@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] drm/nouveau/gsp: fix mismatched alloc/free for kvmalloc()

Replace kfree() with kvfree() for memory allocated by kvmalloc().

Compile-tested only.

Signed-off-by: Qianfeng Rong <rongqianfeng@...o.com>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

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 9d06ff722fea..0dc4782df8c0 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
@@ -325,7 +325,7 @@ r535_gsp_msgq_recv(struct nvkm_gsp *gsp, u32 gsp_rpc_len, int *retries)
 
 		rpc = r535_gsp_msgq_peek(gsp, sizeof(*rpc), info.retries);
 		if (IS_ERR_OR_NULL(rpc)) {
-			kfree(buf);
+			kvfree(buf);
 			return rpc;
 		}
 
@@ -334,7 +334,7 @@ r535_gsp_msgq_recv(struct nvkm_gsp *gsp, u32 gsp_rpc_len, int *retries)
 
 		rpc = r535_gsp_msgq_recv_one_elem(gsp, &info);
 		if (IS_ERR_OR_NULL(rpc)) {
-			kfree(buf);
+			kvfree(buf);
 			return rpc;
 		}
 
-- 
2.34.1