kernel/kdbus-optimize-error-path-in-kdbus_reply_new.patch
2015-07-08 10:30:06 -04:00

47 lines
1.3 KiB
Diff

From: Sergei Zviagintsev <sergei@s15v.net>
Date: Wed, 17 Jun 2015 20:14:57 +0300
Subject: [PATCH] kdbus: optimize error path in kdbus_reply_new()
Move cleanup code to separate location as it never executes on normal
flow. This removes extra if-block and the need to initialize `ret'.
Signed-off-by: Sergei Zviagintsev <sergei@s15v.net>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Djalal Harouni <tixxdz@opendz.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
ipc/kdbus/reply.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/ipc/kdbus/reply.c b/ipc/kdbus/reply.c
index 9d823ebee71f..e6791d86ec92 100644
--- a/ipc/kdbus/reply.c
+++ b/ipc/kdbus/reply.c
@@ -37,7 +37,7 @@ struct kdbus_reply *kdbus_reply_new(struct kdbus_conn *reply_src,
bool sync)
{
struct kdbus_reply *r;
- int ret = 0;
+ int ret;
if (atomic_inc_return(&reply_dst->request_count) >
KDBUS_CONN_MAX_REQUESTS_PENDING) {
@@ -64,13 +64,11 @@ struct kdbus_reply *kdbus_reply_new(struct kdbus_conn *reply_src,
r->waiting = true;
}
-exit_dec_request_count:
- if (ret < 0) {
- atomic_dec(&reply_dst->request_count);
- return ERR_PTR(ret);
- }
-
return r;
+
+exit_dec_request_count:
+ atomic_dec(&reply_dst->request_count);
+ return ERR_PTR(ret);
}
static void __kdbus_reply_free(struct kref *kref)