linux-kernel - [PATCH 5.14 143/151] block/rnbd-clt-sysfs: fix a couple uninitialized variable bugs

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Message-Id: <20211018132345.308431405@linuxfoundation.org>
Date:   Mon, 18 Oct 2021 15:25:22 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Gioh Kim <gi-oh.kim@...os.com>, Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 5.14 143/151] block/rnbd-clt-sysfs: fix a couple uninitialized variable bugs

From: Dan Carpenter <dan.carpenter@...cle.com>

commit 7904022decc260a19dd65b56ac896387f5da6f8c upstream.

These variables are printed on the error path if match_int() fails so
they have to be initialized.

Fixes: 2958a995edc9 ("block/rnbd-clt: Support polling mode for IO latency optimization")
Fixes: 1eb54f8f5dd8 ("block/rnbd: client: sysfs interface functions")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Acked-by: Gioh Kim <gi-oh.kim@...os.com>
Link: https://lore.kernel.org/r/20211012084443.GA31472@kili
Signed-off-by: Jens Axboe <axboe@...nel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/block/rnbd/rnbd-clt-sysfs.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/block/rnbd/rnbd-clt-sysfs.c
+++ b/drivers/block/rnbd/rnbd-clt-sysfs.c
@@ -71,8 +71,10 @@ static int rnbd_clt_parse_map_options(co
 	int opt_mask = 0;
 	int token;
 	int ret = -EINVAL;
-	int i, dest_port, nr_poll_queues;
+	int nr_poll_queues = 0;
+	int dest_port = 0;
 	int p_cnt = 0;
+	int i;
 
 	options = kstrdup(buf, GFP_KERNEL);
 	if (!options)