libsframe: use tmp variable for realloc pattern

If realloc fails, the original buffer isnt free'd otherwise.

libsframe/
        * sframe.c (sframe_encoder_add_fre): Use tmp variable.
        (sframe_encoder_add_funcdesc_internal): Likewise.

diff --git a/libsframe/sframe.c b/libsframe/sframe.c
index 757b56a69cd7102c104174ecbcef0120bf81e645..fb8ece9743b4760c426435c0da837385c696fb4b 100644 (file)
--- a/libsframe/sframe.c
+++ b/libsframe/sframe.c
@@ -1732,12 +1732,13 @@ sframe_encoder_add_fre (sframe_encoder_ctx *ectx,
       fre_tbl_sz = (sizeof (sf_fre_tbl)
                    + ((fre_tbl->alloced + number_of_entries)
                       * sizeof (sframe_frame_row_entry)));
-      fre_tbl = realloc (fre_tbl, fre_tbl_sz);
-      if (fre_tbl == NULL)
+      sf_fre_tbl *tmp = realloc (fre_tbl, fre_tbl_sz);
+      if (tmp == NULL)
        {
          sframe_set_errno (&err, SFRAME_ERR_NOMEM);
          goto bad;             /* OOM.  */
        }
+      fre_tbl = tmp;
 
       memset (&fre_tbl->entry[fre_tbl->alloced], 0,
              number_of_entries * sizeof (sframe_frame_row_entry));
@@ -1817,12 +1818,13 @@ sframe_encoder_add_funcdesc_internal (sframe_encoder_ctx *ectx,
       fd_tbl_sz = (sizeof (sf_fde_tbl)
                   + ((fd_info->alloced + number_of_entries)
                      * sizeof (sframe_func_desc_entry_int)));
-      fd_info = realloc (fd_info, fd_tbl_sz);
-      if (fd_info == NULL)
+      sf_fde_tbl *tmp = realloc (fd_info, fd_tbl_sz);
+      if (tmp == NULL)
        {
          sframe_set_errno (&err, SFRAME_ERR_NOMEM);
          goto bad;             /* OOM.  */
        }
+      fd_info = tmp;
 
       memset (&fd_info->entry[fd_info->alloced], 0,
              number_of_entries * sizeof (sframe_func_desc_entry_int));