linux-kernel - [PATCH] nouveau/gsp/r535: remove a stray unlock in r535_gsp_rpc

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Message-ID: <a0293812-c05d-45f0-a535-3f24fe582c02@moroto.mountain>
Date:   Mon, 27 Nov 2023 15:56:33 +0300
From:   Dan Carpenter <dan.carpenter@...aro.org>
To:     Karol Herbst <kherbst@...hat.com>
Cc:     Lyude Paul <lyude@...hat.com>, Danilo Krummrich <dakr@...hat.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Dave Airlie <airlied@...hat.com>,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH] nouveau/gsp/r535: remove a stray unlock in
 r535_gsp_rpc_send()

This unlock doesn't belong here and it leads to a double unlock in
the caller, r535_gsp_rpc_push().

Fixes: 176fdcbddfd2 ("drm/nouveau/gsp/r535: add support for booting GSP-RM")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
index dc44f5c7833f..818e5c73b7a6 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c
@@ -365,10 +365,8 @@ r535_gsp_rpc_send(struct nvkm_gsp *gsp, void *argv, bool wait, u32 repc)
 	}
 
 	ret = r535_gsp_cmdq_push(gsp, rpc);
-	if (ret) {
-		mutex_unlock(&gsp->cmdq.mutex);
+	if (ret)
 		return ERR_PTR(ret);
-	}
 
 	if (wait) {
 		msg = r535_gsp_msg_recv(gsp, fn, repc);
-- 
2.42.0