sexp: Fix uninitialized use of a var in the error case.

* src/sexp.c (_gcry_sexp_vextract_param): Initialize L1.
--
GnuPG-bug-id: 4212

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/sexp.c b/src/sexp.c
index 9d892680..f2a164c7 100644
--- a/src/sexp.c
+++ b/src/sexp.c
@@ -2232,7 +2232,7 @@ _gcry_sexp_vextract_param (gcry_sexp_t sexp, const char *path,
   gcry_mpi_t *array[20];
   char arrayisdesc[20];
   int idx;
-  gcry_sexp_t l1;
+  gcry_sexp_t l1 = NULL;
   int mode = '+'; /* Default to GCRYMPI_FMT_USG.  */
   gcry_sexp_t freethis = NULL;