linux-kernel - [Patch] Dereference in fs/jbd/journal.c

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Message-Id: <1160045801.6153.9.camel@alice>
Date:	Thu, 05 Oct 2006 12:56:41 +0200
From:	Eric Sesterhenn <snakebyte@....de>
To:	linux-kernel@...r.kernel.org
Cc:	Zoltan.Menyhart@...l.net
Subject: [Patch] Dereference in fs/jbd/journal.c

hi,

since the commit http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d1807793e1e7e502e3dc047115e9dbc3b50e4534
we dereference a NULL pointer. Coverity id #1432.
We set journal to NULL, and use it directly afterwards.

Signed-off-by: Eric Sesterhenn <snakebyte@....de>

--- linux-2.6.19-rc1/fs/jbd/journal.c.orig	2006-10-05 12:53:24.000000000 +0200
+++ linux-2.6.19-rc1/fs/jbd/journal.c	2006-10-05 12:53:41.000000000 +0200
@@ -724,7 +724,7 @@ journal_t * journal_init_dev(struct bloc
 		printk(KERN_ERR "%s: Cant allocate bhs for commit thread\n",
 			__FUNCTION__);
 		kfree(journal);
-		journal = NULL;
+		return NULL;
 	}
 	journal->j_dev = bdev;
 	journal->j_fs_dev = fs_dev;


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