From: Father Chrysostomos <sprout@cpan.org>
Date: Wed, 27 Jun 2012 19:41:56 +0000 (-0700)
Subject: pp.c: Restore uninit warning to study
X-Git-Tag: upstream/5.20.0~6222
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1fa930f22a3485f9bb86d555541c3ac82dc767b6;p=platform%2Fupstream%2Fperl.git

pp.c: Restore uninit warning to study

Also, prevent a crash when SvCUR is used on a non-PV.
---

diff --git a/pp.c b/pp.c
index c7d1841..1742baa 100644
--- a/pp.c
+++ b/pp.c
@@ -652,7 +652,7 @@ PP(pp_study)
     dVAR; dSP; dPOPss;
     STRLEN len;
 
-    len = SvCUR(sv);
+    (void)SvPV(sv, len);
     if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) {
 	/* Historically, study was skipped in these cases. */
 	RETPUSHNO;