From: Kumar Gala <galak@gate.crashing.org>
Date: Tue, 20 Dec 2005 22:16:26 +0000 (-0600)
Subject: [PATCH] powerpc: Loosen udbg_probe_uart_speed sanity checking
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d0e132b536b6c8044991932d0c160676c46c98e5;p=mv-sheeva.git

[PATCH] powerpc: Loosen udbg_probe_uart_speed sanity checking

The checking of the baudrate in udbg_probe_uart_speed was
too tight and would cause reporting back of the default
baud rate in cases where the computed speed was valid.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
index e58c048a7b1..7541bf44d2d 100644
--- a/arch/powerpc/kernel/udbg_16550.c
+++ b/arch/powerpc/kernel/udbg_16550.c
@@ -137,7 +137,7 @@ unsigned int udbg_probe_uart_speed(void __iomem *comport, unsigned int clock)
 	speed = (clock / prescaler) / (divisor * 16);
 
 	/* sanity check */
-	if (speed < 9600 || speed > 115200)
+	if (speed < 0 || speed > (clock / 16))
 		speed = 9600;
 
 	return speed;