[PATCH] verify_blkparse: proper check of file given

diff --git a/verify_blkparse b/verify_blkparse
index bd6a4fb51dafa95a7c2573837c9420ef5337c088..ddbcada302156e8ef264c9a2f85d5013764df2a1 100755 (executable)
--- a/verify_blkparse
+++ b/verify_blkparse
@@ -5,6 +5,10 @@
 // Parse time correctness of blkparse output
 // Thomas Kenne <thomas@2ndfloor.dk>
 
+if (!isset($argv[1])) {
+       die("need file as argument\n");
+}
+
 $file = $argv[1];
 
 if (!is_file($file)) {