add audio

hc

2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/drivers/s390/char/hmcdrv_ftp.c
..
..
@@ -137,7 +137,7 @@
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 			while ((*cmd != '\0') && !iscntrl(*cmd))
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 				++cmd;
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 			ftp->fname = start;
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-			/* fall through */
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+			fallthrough;
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 		default:
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 			*cmd = '\0';
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 			break;