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This commit is contained in:
Maneet Singh
2025-06-16 19:11:43 -07:00
parent d5cb404571
commit 4b30f4cde1
73 changed files with 50482 additions and 50012 deletions
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29
kernel-open/nvidia/nv-caps.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: Copyright (c) 2019-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-FileCopyrightText: Copyright (c) 2019-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -582,6 +582,9 @@ err:
void NV_API_CALL nv_cap_close_fd(int fd)
{
#if NV_FILESYSTEM_ACCESS_AVAILABLE
struct file *file;
NvBool is_nv_cap_fd;
if (fd == -1)
{
return;
@@ -600,6 +603,30 @@ void NV_API_CALL nv_cap_close_fd(int fd)
return;
}
file = fget(fd);
if (file == NULL)
{
task_unlock(current);
return;
}
/* Make sure the fd belongs to the nv-cap-drv */
is_nv_cap_fd = (file->f_op == &g_nv_cap_drv_fops);
fput(file);
/*
* In some cases, we may be in shutdown path and execute
* in context of unrelated process. In that case we should
* not access any 'current' state, but instead let kernel
* clean up capability files on its own.
*/
if (!is_nv_cap_fd)
{
task_unlock(current);
return;
}
/*
* From v4.17-rc1 (to v5.10.8) kernels have stopped exporting sys_close(fd)
* and started exporting __close_fd, as of this commit: