diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl index a8635a10fef28fa165df0aa4cb2ab545135042d3..f0af9aa9b243bcb1892ede765a44b2b225921046 100644 --- 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";