[media] ir: Fix IR_MAX_DURATION enforcement

Don't assume that IR_MAX_DURATION is a bitmask. It isn't.

Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/rc/redrat3.c

···
 	u32 result;
 	u32 divisor;
 
-	microsec &= IR_MAX_DURATION;
+	microsec = (microsec > IR_MAX_DURATION) ? IR_MAX_DURATION : microsec;
 	divisor = (RR3_CLK_CONV_FACTOR / 1000);
 	result = (u32)(microsec * divisor) / 1000;
 
···
 		if (i == 0)
 			trailer = rawir.duration;
 		/* cap the value to IR_MAX_DURATION */
-		rawir.duration &= IR_MAX_DURATION;
+		rawir.duration = (rawir.duration > IR_MAX_DURATION) ?
+				 IR_MAX_DURATION : rawir.duration;
 
 		dev_dbg(dev, "storing %s with duration %d (i: %d)\n",
 			rawir.pulse ? "pulse" : "space", rawir.duration, i);

drivers/media/rc/streamzap.c

···
 				sz->signal_last.tv_usec);
 			rawir.duration -= sz->sum;
 			rawir.duration = US_TO_NS(rawir.duration);
-			rawir.duration &= IR_MAX_DURATION;
+			rawir.duration = (rawir.duration > IR_MAX_DURATION) ?
+					 IR_MAX_DURATION : rawir.duration;
 		}
 		sz_push(sz, rawir);
 
···
 	rawir.duration += SZ_RESOLUTION / 2;
 	sz->sum += rawir.duration;
 	rawir.duration = US_TO_NS(rawir.duration);
-	rawir.duration &= IR_MAX_DURATION;
+	rawir.duration = (rawir.duration > IR_MAX_DURATION) ?
+			 IR_MAX_DURATION : rawir.duration;
 	sz_push(sz, rawir);
 }