sssd/0019-sss_ptr_hash-don-t-keep-empty-sss_ptr_hash_delete_da.patch

92 lines
2.9 KiB
Diff

From adc7730a4e1b9721c93863a1b283457e9c02a3c5 Mon Sep 17 00:00:00 2001
From: Alexey Tikhonov <atikhono@redhat.com>
Date: Thu, 23 Jan 2020 17:55:24 +0100
Subject: [PATCH 19/24] sss_ptr_hash: don't keep empty sss_ptr_hash_delete_data
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
There is no need to allocate memory for `sss_ptr_hash_delete_data`
if table user doesn't provide custom delete callback.
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
---
src/util/sss_ptr_hash.c | 36 ++++++++++++++++++++----------------
1 file changed, 20 insertions(+), 16 deletions(-)
diff --git a/src/util/sss_ptr_hash.c b/src/util/sss_ptr_hash.c
index 8f9762cb9..f8addec1e 100644
--- a/src/util/sss_ptr_hash.c
+++ b/src/util/sss_ptr_hash.c
@@ -138,12 +138,6 @@ sss_ptr_hash_delete_cb(hash_entry_t *item,
struct sss_ptr_hash_value *value;
struct hash_entry_t callback_entry;
- data = talloc_get_type(pvt, struct sss_ptr_hash_delete_data);
- if (data == NULL) {
- DEBUG(SSSDBG_CRIT_FAILURE, "Invalid data!\n");
- return;
- }
-
value = talloc_get_type(item->value.ptr, struct sss_ptr_hash_value);
if (value == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, "Invalid value!\n");
@@ -157,8 +151,14 @@ sss_ptr_hash_delete_cb(hash_entry_t *item,
/* Free value, this also will disable spy */
talloc_free(value);
- /* Switch to the input value and call custom callback. */
- if (data->callback != NULL) {
+ if (pvt != NULL) {
+ /* Switch to the input value and call custom callback. */
+ data = talloc_get_type(pvt, struct sss_ptr_hash_delete_data);
+ if (data == NULL) {
+ DEBUG(SSSDBG_CRIT_FAILURE, "Invalid data!\n");
+ return;
+ }
+
data->callback(&callback_entry, deltype, data->pvt);
}
}
@@ -167,17 +167,19 @@ hash_table_t *sss_ptr_hash_create(TALLOC_CTX *mem_ctx,
hash_delete_callback *del_cb,
void *del_cb_pvt)
{
- struct sss_ptr_hash_delete_data *data;
+ struct sss_ptr_hash_delete_data *data = NULL;
hash_table_t *table;
errno_t ret;
- data = talloc_zero(NULL, struct sss_ptr_hash_delete_data);
- if (data == NULL) {
- return NULL;
- }
+ if (del_cb != NULL) {
+ data = talloc_zero(NULL, struct sss_ptr_hash_delete_data);
+ if (data == NULL) {
+ return NULL;
+ }
- data->callback = del_cb;
- data->pvt = del_cb_pvt;
+ data->callback = del_cb;
+ data->pvt = del_cb_pvt;
+ }
ret = sss_hash_create_ex(mem_ctx, 10, &table, 0, 0, 0, 0,
sss_ptr_hash_delete_cb, data);
@@ -188,7 +190,9 @@ hash_table_t *sss_ptr_hash_create(TALLOC_CTX *mem_ctx,
return NULL;
}
- talloc_steal(table, data);
+ if (data != NULL) {
+ talloc_steal(table, data);
+ }
return table;
}
--
2.20.1