linux-kernel - [PATCH AUTOSEL 4.19 041/123] aio: fix failure to put the file pointer

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Date:   Wed,  5 Dec 2018 04:34:33 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Jens Axboe <axboe@...nel.dk>, Al Viro <viro@...iv.linux.org.uk>,
        Sasha Levin <sashal@...nel.org>, linux-fsdevel@...r.kernel.org,
        linux-aio@...ck.org
Subject: [PATCH AUTOSEL 4.19 041/123] aio: fix failure to put the file pointer

From: Jens Axboe <axboe@...nel.dk>

[ Upstream commit 53fffe29a9e664a999dd3787e4428da8c30533e0 ]

If the ioprio capability check fails, we return without putting
the file pointer.

Fixes: d9a08a9e616b ("fs: Add aio iopriority support")
Signed-off-by: Jens Axboe <axboe@...nel.dk>
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/aio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/aio.c b/fs/aio.c
index b9350f3360c6..04c4d6218978 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1436,6 +1436,7 @@ static int aio_prep_rw(struct kiocb *req, struct iocb *iocb)
 		ret = ioprio_check_cap(iocb->aio_reqprio);
 		if (ret) {
 			pr_debug("aio ioprio check cap error: %d\n", ret);
+			fput(req->ki_filp);
 			return ret;
 		}
 
-- 
2.17.1