ALSA: seq: Use atomic ops for autoload refcount (54841a06) · Commits · e / devices / android_kernel_teracube_2e

sound/core/seq/seq_device.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -127,15 +127,15 @@ static void snd_seq_device_info(struct snd_info_entry *entry,

		#ifdef CONFIG_MODULES
		/* avoid auto-loading during module_init() */
		static int snd_seq_in_init;
		static atomic_t snd_seq_in_init = ATOMIC_INIT(0);
		void snd_seq_autoload_lock(void)
		{
		snd_seq_in_init++;
		atomic_inc(&snd_seq_in_init);
		}

		void snd_seq_autoload_unlock(void)
		{
		snd_seq_in_init--;
		atomic_dec(&snd_seq_in_init);
		}
		#endif

		@@ -147,7 +147,7 @@ void snd_seq_device_load_drivers(void)
		/* Calling request_module during module_init()
		* may cause blocking.
		*/
		if (snd_seq_in_init)
		if (atomic_read(&snd_seq_in_init))
		return;

		mutex_lock(&ops_mutex);