linux-kernel - [GIT PULL 43/45] lightnvm: pblk: fix error handling of pblk_lines

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Message-Id: <20181009111215.7653-44-mb@lightnvm.io>
Date:   Tue,  9 Oct 2018 13:12:13 +0200
From:   Matias Bjørling <mb@...htnvm.io>
To:     axboe@...com
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Wei Yongjun <weiyongjun1@...wei.com>,
        Matias Bjørling <mb@...htnvm.io>
Subject: [GIT PULL 43/45] lightnvm: pblk: fix error handling of pblk_lines_init()

From: Wei Yongjun <weiyongjun1@...wei.com>

In the too many bad blocks error handling case, we should release all
the allocated resources, otherwise it will cause memory leak.

Fixes: 2deeefc02dff ("lightnvm: pblk: fail gracefully on line alloc. failure")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Reviewed-by: Hans Holmberg <hans.holmberg@...xlabs.com>
Signed-off-by: Matias Bjørling <mb@...htnvm.io>
---
 drivers/lightnvm/pblk-init.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index e0db0cb3122d..e3573880dbda 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -1024,7 +1024,8 @@ static int pblk_lines_init(struct pblk *pblk)
 
 	if (!nr_free_chks) {
 		pblk_err(pblk, "too many bad blocks prevent for sane instance\n");
-		return -EINTR;
+		ret = -EINTR;
+		goto fail_free_lines;
 	}
 
 	pblk_set_provision(pblk, nr_free_chks);
-- 
2.17.1