Blame SOURCES/0052-LDAP-minor-refactoring-in-auth_send-to-conform-to-ou.patch

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From 876f1cb87d1649d0681bf6475ab589287f15babb Mon Sep 17 00:00:00 2001
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From: Jakub Hrozek <jhrozek@redhat.com>
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Date: Thu, 22 Nov 2018 12:51:14 +0100
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Subject: [PATCH 52/54] LDAP: minor refactoring in auth_send() to conform to
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 our coding style
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Related:
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https://pagure.io/SSSD/sssd/issue/3451
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A tevent _send() function should only return NULL on ENOMEM, otherwise
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it should mark the request as failed but return the req pointer. This
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was not much of an issue, before, but the next patch will add another
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function call to the auth_send call which would make error handling
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awkward.
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Reviewed-by: Sumit Bose <sbose@redhat.com>
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(cherry picked from commit 09091b4b60456a989ecc8c3b6f76661a14c108ba)
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---
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 src/providers/ldap/ldap_auth.c | 17 +++++++++++------
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 1 file changed, 11 insertions(+), 6 deletions(-)
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diff --git a/src/providers/ldap/ldap_auth.c b/src/providers/ldap/ldap_auth.c
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index d40bc9414..c409353d9 100644
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--- a/src/providers/ldap/ldap_auth.c
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+++ b/src/providers/ldap/ldap_auth.c
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@@ -636,6 +636,7 @@ static struct tevent_req *auth_send(TALLOC_CTX *memctx,
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 {
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     struct tevent_req *req;
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     struct auth_state *state;
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+    errno_t ret;
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     req = tevent_req_create(memctx, &state, struct auth_state);
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     if (!req) return NULL;
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@@ -645,11 +646,11 @@ static struct tevent_req *auth_send(TALLOC_CTX *memctx,
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         if (sss_authtok_get_type(authtok) == SSS_AUTHTOK_TYPE_SC_PIN
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             || sss_authtok_get_type(authtok) == SSS_AUTHTOK_TYPE_SC_KEYPAD) {
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             /* Tell frontend that we do not support Smartcard authentication */
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-            tevent_req_error(req, ERR_SC_AUTH_NOT_SUPPORTED);
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+            ret = ERR_SC_AUTH_NOT_SUPPORTED;
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         } else {
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-            tevent_req_error(req, ERR_AUTH_FAILED);
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+            ret = ERR_AUTH_FAILED;
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         }
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-        return tevent_req_post(req, ev);
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+        goto fail;
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     }
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     state->ev = ev;
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@@ -663,13 +664,17 @@ static struct tevent_req *auth_send(TALLOC_CTX *memctx,
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         state->sdap_service = ctx->service;
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     }
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-    if (!auth_connect_send(req)) goto fail;
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+    if (auth_connect_send(req) == NULL) {
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+        ret = ENOMEM;
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+        goto fail;
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+    }
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     return req;
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 fail:
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-    talloc_zfree(req);
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-    return NULL;
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+    tevent_req_error(req, ret);
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+    tevent_req_post(req, ev);
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+    return req;
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 }
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 static struct tevent_req *auth_connect_send(struct tevent_req *req)
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-- 
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2.19.1
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