accel/ivpu: Check return code of ipc->lock init

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>

diff --git a/drivers/accel/ivpu/ivpu_ipc.c b/drivers/accel/ivpu/ivpu_ipc.c
index fa66c39b57ecaaecae036d17f79c3e7683fc5279..f4c5392483656f45b4b39970c5687a53d41f2353 100644 (file)
--- 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 *vdev)
        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;