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From: Warner Losh <imp@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
Cc: 
Subject: PERFORCE change 95715 for review
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http://perforce.freebsd.org/chv.cgi?CH=95715

Change 95715 by imp@imp_hammer on 2006/04/20 21:03:37

	Make getc(0) effect a poll.  This also happens to save 4 bytes.

Affected files ...

.. //depot/projects/arm/src/sys/boot/arm/at91/libat91/getc.c#3 edit

Differences ...

==== //depot/projects/arm/src/sys/boot/arm/at91/libat91/getc.c#3 (text) ====

@@ -53,10 +53,10 @@
 	thisSecond = GetSeconds();
 	seconds = thisSecond + seconds;
 
-	while (thisSecond <= seconds) {
+	do {
 		if ((pUSART->US_CSR & AT91C_US_RXRDY))
 			return (pUSART->US_RHR & 0xFF);
 		thisSecond = GetSeconds();
-	}
+	} while (thisSecond < seconds);
 	return (-1);
 }