[PATCH 2.6.24-rc8-mm1] checkpatch.pl -- Handle backslashes within quoted string.

[Tetsuo Handa]

checkpatch.pl was unable to handle \\ within quoted string.

+static void test(char *sp, char *dp)
+{
+       if (*sp == '\\') {
+               *dp++ = '\\';
+               *dp++ = '\\';
+       }
+}

I hope this patch can fix it.
But I don't know whether there is a side effect or not.
Should we use "X" rather than "\\"?

Signed-off-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
---
 scripts/checkpatch.pl |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- linux-2.6-mm.orig/scripts/checkpatch.pl
+++ linux-2.6-mm/scripts/checkpatch.pl
@@ -276,6 +276,11 @@ sub sanitise_line {
 	my $quote = '';
 
 	foreach my $c (split(//, $line)) {
+		if ($quote && $l eq "\\" && $c eq "\\") {
+			$res .= "\\";
+			$l = '';
+			next;
+		}
 		if ($l ne "\\" && ($c eq "'" || $c eq '"')) {
 			if ($quote eq '') {
 				$quote = $c;
@@ -286,7 +291,7 @@ sub sanitise_line {
 				$quote = '';
 			}
 		}
-		if ($quote && $c ne "\t") {
+		if ($quote && $c ne "\t" && $c ne "\\") {
 			$res .= "X";
 		} else {
 			$res .= $c;
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