markup_oops: use modinfo to avoid confusion with underscored module names

When EIP is at a module having an underscore in its name, the current code
fails to find it because the module filenames has '-' instead of '_'.  Use
modinfo for a better path finding.

Signed-off-by: Ozan Çaglayan <ozan@pardus.org.tr>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

scripts/markup_oops.pl

diff --git a/scripts/markup_oops.pl b/scripts/markup_oops.pl
index 8977401..5f0fcb7 100644
--- a/scripts/markup_oops.pl
+++ b/scripts/markup_oops.pl
@@ -184,10 +184,7 @@
 
 # if it's a module, we need to find the .ko file and calculate a load offset
 if ($module ne "") {
-	my $dir = dirname($filename);
-	$dir = $dir . "/";
-	my $mod = $module . ".ko";
-	my $modulefile = `find $dir -name $mod | head -1`;
+	my $modulefile = `modinfo $module | grep '^filename:' | awk '{ print \$2 }'`;
 	chomp($modulefile);
 	$filename = $modulefile;
 	if ($filename eq "") {