Add -Wuse-after-free [PR80532].

[thirdparty/gcc.git] / libcpp / files.c

diff --git a/libcpp/files.c b/libcpp/files.c
index e4e234f58bb4c76a2807e90289849f3053d37430..24208f7b0f82145e9646d7932b55f8ac19909344 100644 (file)
--- a/libcpp/files.c
+++ b/libcpp/files.c
@@ -553,12 +553,11 @@ _cpp_find_file (cpp_reader *pfile, const char *fname, cpp_dir *start_dir,
                  {
                    /* If *hash_slot is NULL, the above
                       htab_find_slot_with_hash call just created the
-                      slot, but we aren't going to store there
-                      anything, so need to remove the newly created
-                      entry.  htab_clear_slot requires that it is
-                      non-NULL, so store there some non-NULL pointer,
-                      htab_clear_slot will overwrite it
-                      immediately.  */
+                      slot, but we aren't going to store there anything
+                      of use, so need to remove the newly created entry.
+                      htab_clear_slot requires that it is non-NULL, so
+                      store some non-NULL but valid pointer there,
+                      htab_clear_slot will immediately overwrite it.  */
                    *hash_slot = file;
                    htab_clear_slot (pfile->file_hash, hash_slot);
                  }
@@ -582,7 +581,7 @@ _cpp_find_file (cpp_reader *pfile, const char *fname, cpp_dir *start_dir,
                if (*hash_slot == NULL)
                  {
                    /* See comment on the above htab_clear_slot call.  */
-                   *hash_slot = file;
+                   *hash_slot = &hash_slot;
                    htab_clear_slot (pfile->file_hash, hash_slot);
                  }
                return NULL;