V4L/DVB (6707): pvrusb2: Remove use of volatile in pipeline control state machine

pvrusb2: Eliminate use of volatile in pipeline control state
variables.  These were all cases of paranoia; upon further review the
overall mechanism employed here should not require use of volatile.
This had originally been done out of paranoia, and I have since been
convinced that the paranoia is not required.
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h

@@ -229,14 +229,14 @@ struct pvr2_hdw {
 
 	/* Bits of state that describe what is going on with various parts
 	   of the driver. */
-	volatile int state_encoder_ok;         /* Encoder is operational */
-	volatile int state_encoder_run;        /* Encoder is running */
-	volatile int state_encoder_config;     /* Encoder is configured */
-	volatile int state_encoder_waitok;     /* Encoder pre-wait done */
-	volatile int state_decoder_run;        /* Decoder is running */
-	volatile int state_usbstream_run;      /* FX2 is streaming */
-	volatile int state_decoder_quiescent;  /* Decoder idle for > 50msec */
-	volatile int state_pipeline_config;    /* Pipeline is configured */
+	int state_encoder_ok;         /* Encoder is operational */
+	int state_encoder_run;        /* Encoder is running */
+	int state_encoder_config;     /* Encoder is configured */
+	int state_encoder_waitok;     /* Encoder pre-wait done */
+	int state_decoder_run;        /* Decoder is running */
+	int state_usbstream_run;      /* FX2 is streaming */
+	int state_decoder_quiescent;  /* Decoder idle for > 50msec */
+	int state_pipeline_config;    /* Pipeline is configured */
 	int state_pipeline_req;                /* Somebody wants to stream */
 	int state_pipeline_pause;              /* Pipeline must be paused */
 	int state_pipeline_idle;               /* Pipeline not running */