diff mbox series

[-next,v5,3/6] dm-raid: remove useless checking in raid_message()

Message ID 20230410113559.1610455-4-yukuai1@huaweicloud.com
State New
Headers
Series md: fix uaf for sync_thread |

Commit Message

Yu Kuai April 10, 2023, 11:35 a.m. UTC 
  From: Yu Kuai <yukuai3@huawei.com>

md_wakeup_thread() handle the case that pass in md_thread is NULL, there
is no need to check this. Prepare to protect md_thread with rcu.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
 drivers/md/dm-raid.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 2dfd51509647..9db45f3508e3 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3750,11 +3750,11 @@  static int raid_message(struct dm_target *ti, unsigned int argc, char **argv,
 		 * canceling read-auto mode
 		 */
 		mddev->ro = 0;
-		if (!mddev->suspended && mddev->sync_thread)
+		if (!mddev->suspended)
 			md_wakeup_thread(mddev->sync_thread);
 	}
 	set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
-	if (!mddev->suspended && mddev->thread)
+	if (!mddev->suspended)
 		md_wakeup_thread(mddev->thread);
 
 	return 0;