write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/include/media/dvb_net.h
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@@ -41,6 +41,9 @@
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  * @exit:		flag to indicate when the device is being removed.
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  * @demux:		pointer to &struct dmx_demux.
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  * @ioctl_mutex:	protect access to this struct.
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+ * @remove_mutex:	mutex that avoids a race condition between a callback
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+ *			called when the hardware is disconnected and the
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+ *			file_operations of dvb_net.
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  *
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  * Currently, the core supports up to %DVB_NET_DEVICES_MAX (10) network
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  * devices.
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@@ -53,6 +56,7 @@
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 	unsigned int exit:1;
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 	struct dmx_demux *demux;
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 	struct mutex ioctl_mutex;
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+	struct mutex remove_mutex;
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 };
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 /**