diff mbox

Btrfs: fix memory leak in start_transaction()

Message ID 505A9825.1070402@cn.fujitsu.com (mailing list archive)
State New, archived
Headers show

Commit Message

Miao Xie Sept. 20, 2012, 4:14 a.m. UTC 
This patch fixes memory leak of the transaction handle which happened
when starting transaction failed on a freezed fs.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
---
This patch is based on btrfs-next tree
---
 fs/btrfs/transaction.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index e766d37..9bf9f6f 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -351,8 +351,10 @@  again:
 	 */
 	if (type != TRANS_JOIN_NOLOCK &&
 	    !__sb_start_write(root->fs_info->sb, SB_FREEZE_FS, false)) {
-		if (type == TRANS_JOIN_FREEZE)
+		if (type == TRANS_JOIN_FREEZE) {
+			kmem_cache_free(btrfs_trans_handle_cachep, h);
 			return ERR_PTR(-EPERM);
+		}
 		sb_start_intwrite(root->fs_info->sb);
 	}