add audio

hc

2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/fs/jffs2/background.c
..
..
@@ -125,7 +125,7 @@
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 			if (try_to_freeze())
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 				goto again;
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-			signr = kernel_dequeue_signal(NULL);
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+			signr = kernel_dequeue_signal();
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 			switch(signr) {
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 			case SIGSTOP: