[PATCHv3 for-next 20/20] RDMA/rtrs-clt: Fix memory leak of not-freed sess->stats and stats->pcpu_stats

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Gioh Kim <gi-oh.kim@xxxxxxxxxxxxxxx>

sess->stats and sess->stats->pcpu_stats objects are freed
when sysfs entry is removed. If something wrong happens and
session is closed before sysfs entry is created,
sess->stats and sess->stats->pcpu_stats objects are not freed.

This patch adds freeing of them at three places:
1. When client uses wrong address and session creation fails.
2. When client fails to create a sysfs entry.
3. When client adds wrong address via sysfs add_path.

Fixes: 215378b838df0 ("RDMA/rtrs: client: sysfs interface functions")
Signed-off-by: Gioh Kim <gi-oh.kim@xxxxxxxxx>
Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxx>
---
 drivers/infiniband/ulp/rtrs/rtrs-clt.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index e4a23c40d4c7..8e05a71d8da1 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -2765,6 +2765,8 @@ struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
 		if (err) {
 			list_del_rcu(&sess->s.entry);
 			rtrs_clt_close_conns(sess, true);
+			free_percpu(sess->stats->pcpu_stats);
+			kfree(sess->stats);
 			free_sess(sess);
 			goto close_all_sess;
 		}
@@ -2773,6 +2775,8 @@ struct rtrs_clt *rtrs_clt_open(struct rtrs_clt_ops *ops,
 		if (err) {
 			list_del_rcu(&sess->s.entry);
 			rtrs_clt_close_conns(sess, true);
+			free_percpu(sess->stats->pcpu_stats);
+			kfree(sess->stats);
 			free_sess(sess);
 			goto close_all_sess;
 		}
@@ -3048,6 +3052,8 @@ int rtrs_clt_create_path_from_sysfs(struct rtrs_clt *clt,
 close_sess:
 	rtrs_clt_remove_path_from_arr(sess);
 	rtrs_clt_close_conns(sess, true);
+	free_percpu(sess->stats->pcpu_stats);
+	kfree(sess->stats);
 	free_sess(sess);
 
 	return err;
-- 
2.25.1




[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Yosemite Photos]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux