cipher: Improve error handling.

* cipher/ecc.c (ecc_decrypt_raw): Improve error handling.
--
Found using the Clang Static Analyzer.

Signed-off-by: Justus Winter <justus@g10code.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/cipher/ecc.c b/cipher/ecc.c
index e4e9139d..105650e0 100644
--- a/cipher/ecc.c
+++ b/cipher/ecc.c
@@ -1591,7 +1591,10 @@ ecc_decrypt_raw (gcry_sexp_t *r_plain, gcry_sexp_t s_data, gcry_sexp_t keyparms)
         rawmpi = _gcry_mpi_get_buffer_extra (x, ec->nbits/8, -1,
                                              &rawmpilen, NULL);
         if (!rawmpi)
-          rc = gpg_err_code_from_syserror ();
+          {
+            rc = gpg_err_code_from_syserror ();
+            goto leave;
+          }
         else
           {
             rawmpi[0] = 0x40;