Torsten reported that there is garbage output,
after commit 8fee13a48e4879fba57725f6d9513df4bfa8e9f3 (x86,
setup: enable early console output from the decompressor)

it turns out we missed the offset for that case.

Reported-by: Torsten Kaiser <just.for.lkml@googlemail.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>

Index: linux-2.6/arch/x86/boot/early_serial_console.c
===================================================================
--- linux-2.6.orig/arch/x86/boot/early_serial_console.c
+++ linux-2.6/arch/x86/boot/early_serial_console.c
@@ -58,7 +58,7 @@ static void parse_earlyprintk(void)
 		if (arg[pos] == ',')
 			pos++;
 
-		if (!strncmp(arg, "ttyS", 4)) {
+		if (!strncmp(arg + pos, "ttyS", 4)) {
 			static const int bases[] = { 0x3f8, 0x2f8 };
 			int idx = 0;
 

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