add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/char/dtlk.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*                                              -*- linux-c -*-
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  * dtlk.c - DoubleTalk PC driver for Linux
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  *
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@@ -298,12 +299,11 @@
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 {
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 	TRACE_TEXT("(dtlk_open");
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-	nonseekable_open(inode, file);
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 	switch (iminor(inode)) {
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 	case DTLK_MINOR:
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 		if (dtlk_busy)
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 			return -EBUSY;
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-		return nonseekable_open(inode, file);
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+		return stream_open(inode, file);
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 	default:
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 		return -ENXIO;