[PATCH 6.8 118/172] accel/ivpu: Check return code of ipc->lock init

Greg Kroah-Hartman
2024-04-15T14:29:25Z

From: Wachowski, Karol <karol.wachowski@intel.com>

commit f0cf7ffcd02953c72fed5995378805883d16203e upstream.

Return value of drmm_mutex_init(ipc->lock) was unchecked.

Fixes: 5d7422cfb498 ("accel/ivpu: Add IPC driver and JSM messages")
Cc: <stable@vger.kernel.org> # v6.3+
Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402104929.941186-2-jacek.lawrynowicz@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/accel/ivpu/ivpu_ipc.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

--- a/drivers/accel/ivpu/ivpu_ipc.c
+++ b/drivers/accel/ivpu/ivpu_ipc.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
- * Copyright (C) 2020-2023 Intel Corporation
+ * Copyright (C) 2020-2024 Intel Corporation
*/

#include <linux/genalloc.h>
@@ -501,7 +501,11 @@ int ivpu_ipc_init(struct ivpu_device *vd
spin_lock_init(&ipc->cons_lock);
INIT_LIST_HEAD(&ipc->cons_list);
INIT_LIST_HEAD(&ipc->cb_msg_list);
- drmm_mutex_init(&vdev->drm, &ipc->lock);
+ ret = drmm_mutex_init(&vdev->drm, &ipc->lock);
+ if (ret) {
+ ivpu_err(vdev, "Failed to initialize ipc->lock, ret %d\n", ret);
+ goto err_free_rx;
+ }
ivpu_ipc_reset(vdev);
return 0;