[evolution-ews] Fix a memory leak in camel_ews_store_ensure_virtual_folders()

[Milan Crha <mcrha src gnome org>]

commit a3cdc0e8609e576b6c837745f1b6d80c252bd7e8
Author: Milan Crha <mcrha redhat com>
Date:   Mon Aug 26 19:18:42 2019 +0200

    Fix a memory leak in camel_ews_store_ensure_virtual_folders()

 src/camel/camel-ews-store.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)
---
diff --git a/src/camel/camel-ews-store.c b/src/camel/camel-ews-store.c
index c3795266..8b3003b0 100644
--- a/src/camel/camel-ews-store.c
+++ b/src/camel/camel-ews-store.c
@@ -395,7 +395,7 @@ camel_ews_store_ensure_virtual_folders (CamelEwsStore *ews_store)
        if (!folders)
                return;
 
-       children_count = g_hash_table_new (g_str_hash, g_str_equal);
+       children_count = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
 
        for (iter = folders; iter; iter = iter->next) {
                const gchar *fid = iter->data;
@@ -406,11 +406,11 @@ camel_ews_store_ensure_virtual_folders (CamelEwsStore *ews_store)
 
                if (g_str_has_prefix (fid, "ForeignMailbox::") &&
                    !g_hash_table_contains (children_count, fid))
-                       g_hash_table_insert (children_count, (gpointer) fid, GINT_TO_POINTER (0));
+                       g_hash_table_insert (children_count, g_strdup (fid), GINT_TO_POINTER (0));
 
                if (g_str_equal (fid, EWS_PUBLIC_FOLDER_ROOT_ID) &&
                    !g_hash_table_contains (children_count, fid))
-                       g_hash_table_insert (children_count, (gpointer) fid, GINT_TO_POINTER (0));
+                       g_hash_table_insert (children_count, g_strdup (fid), GINT_TO_POINTER (0));
 
                if (!has_foreign && g_str_equal (fid, EWS_FOREIGN_FOLDER_ROOT_ID))
                        has_foreign = TRUE;
@@ -423,7 +423,9 @@ camel_ews_store_ensure_virtual_folders (CamelEwsStore *ews_store)
                        if (pfid && g_str_has_prefix (pfid, "ForeignMailbox::")) {
                                gint count = GPOINTER_TO_INT (g_hash_table_lookup (children_count, pfid));
 
-                               g_hash_table_insert (children_count, (gpointer) pfid, GINT_TO_POINTER (count 
+ 1));
+                               g_hash_table_insert (children_count, pfid, GINT_TO_POINTER (count + 1));
+                       } else {
+                               g_free (pfid);
                        }
                }
 
@@ -447,7 +449,9 @@ camel_ews_store_ensure_virtual_folders (CamelEwsStore *ews_store)
                                        if (pfid && g_str_equal (pfid, EWS_PUBLIC_FOLDER_ROOT_ID)) {
                                                gint count = GPOINTER_TO_INT (g_hash_table_lookup 
(children_count, pfid));
 
-                                               g_hash_table_insert (children_count, (gpointer) pfid, 
GINT_TO_POINTER (count + 1));
+                                               g_hash_table_insert (children_count, pfid, GINT_TO_POINTER 
(count + 1));
+                                       } else {
+                                               g_free (pfid);
                                        }
                                }
                        }