linux-kernel - [PATCH] fix null pointer bugzilla 203737 . wich is triggered in function bio_set_dev(bio, bdev) in case bdev is null Signed-off-by: Kovtunenko Oleksandr <alexander198961@...il.com>

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Date:   Wed, 17 Jul 2019 08:04:50 +0000
From:   Kovtunenko Oleksandr <alexander198961@...il.com>
To:     shaggy@...nel.org, jfs-discussion@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Cc:     alexander198961@...il.com
Subject: [PATCH] fix null pointer bugzilla 203737 . wich is triggered in function bio_set_dev(bio, bdev) in case bdev is null Signed-off-by: Kovtunenko Oleksandr <alexander198961@...il.com>

---
 fs/jfs/jfs_logmgr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 9330eff..c2fcaa0 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1209,6 +1209,7 @@ static int open_dummy_log(struct super_block *sb)
 		/* Make up some stuff */
 		dummy_log->base = 0;
 		dummy_log->size = 1024;
+		dummy_log->bdev = sb->s_bdev;
 		rc = lmLogInit(dummy_log);
 		if (rc) {
 			kfree(dummy_log);
-- 
1.8.3.1