Merge branch 'x86/apic' into cpus4096

[linux-2.6-block.git] / scripts / bootgraph.pl

diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl
index d2c61efc216f4bd413dd271faa3aa62c736c6203..f0af9aa9b243bcb1892ede765a44b2b225921046 100644 (file)
--- a/scripts/bootgraph.pl
+++ b/scripts/bootgraph.pl
@@ -78,11 +78,13 @@ while (<>) {
 }
 
 if ($count == 0) {
-       print "No data found in the dmesg. Make sure that 'printk.time=1' and\n";
-       print "'initcall_debug' are passed on the kernel command line.\n\n";
-       print "Usage: \n";
-       print "      dmesg | perl scripts/bootgraph.pl > output.svg\n\n";
-       exit;
+    print STDERR <<END;
+No data found in the dmesg. Make sure that 'printk.time=1' and
+'initcall_debug' are passed on the kernel command line.
+Usage:
+      dmesg | perl scripts/bootgraph.pl > output.svg
+END
+    exit 1;
 }
 
 print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
@@ -109,8 +111,8 @@ my $stylecounter = 0;
 my %rows;
 my $rowscount = 1;
 my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);
-my $key;
-foreach $key (@initcalls) {
+
+foreach my $key (@initcalls) {
        my $duration = $end{$key} - $start{$key};
 
        if ($duration >= $threshold) {