lemon: remove leak in tplt_open().

Change-Id: I6a13c89e27797f8c8d1e187aef8923b9df0c8ee4
Reviewed-on: https://code.wireshark.org/review/26706
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/tools/lemon/lemon.c b/tools/lemon/lemon.c
index 64e4179f28..4673e1d061 100644
--- a/tools/lemon/lemon.c
+++ b/tools/lemon/lemon.c
@@ -3515,6 +3515,7 @@ PRIVATE FILE *tplt_open(struct lemon *lemp)
   char buf[1000];
   FILE *in;
   char *tpltname;
+  int tpltname_allocd = LEMON_FALSE;
   char *cp;
 
   /* first, see if user specified a template filename on the command line. */
@@ -3547,20 +3548,27 @@ PRIVATE FILE *tplt_open(struct lemon *lemp)
     tpltname = templatename;
   }else{
     tpltname = pathsearch(lemp->argv0,templatename,0);
+    tpltname_allocd = LEMON_TRUE;
   }
   if( tpltname==0 ){
     fprintf(stderr,"Can't find the parser driver template file \"%s\".\n",
     templatename);
     lemp->errorcnt++;
+    if (tpltname_allocd)
+      free(tpltname);
     return 0;
   }
   in = fopen(tpltname,"rb");
   if( in==0 ){
     fprintf(stderr,"Can't open the template file \"%s\".\n",templatename);
     lemp->errorcnt++;
+    if (tpltname_allocd)
+      free(tpltname);
     return 0;
   }
 
+  if (tpltname_allocd)
+    free(tpltname);
   return in;
 }