add audio

hc

2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/sound/core/seq/oss/seq_oss_device.h
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@@ -1,21 +1,8 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /*
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  * OSS compatible sequencer driver
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  *
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  * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
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  */
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 #ifndef __SEQ_OSS_DEVICE_H
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@@ -30,6 +17,7 @@
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 #include <sound/rawmidi.h>
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 #include <sound/seq_kernel.h>
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 #include <sound/info.h>
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+#include "../seq_clientmgr.h"
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 /* max. applications */
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 #define SNDRV_SEQ_OSS_MAX_CLIENTS	16
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@@ -150,11 +138,16 @@
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 	return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop);
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 }
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-/* ioctl */
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+/* ioctl for writeq */
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 static inline int
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 snd_seq_oss_control(struct seq_oss_devinfo *dp, unsigned int type, void *arg)
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 {
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-	return snd_seq_kernel_client_ctl(dp->cseq, type, arg);
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+	int err;
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+
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+	snd_seq_client_ioctl_lock(dp->cseq);
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+	err = snd_seq_kernel_client_ctl(dp->cseq, type, arg);
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+	snd_seq_client_ioctl_unlock(dp->cseq);
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+	return err;
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 }
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 /* fill the addresses in header */