From: Dan Carpenter <dan.carpenter@oracle.com>
To: jbacik@fusionio.com
Cc: linux-btrfs@vger.kernel.org
Subject: re: Btrfs: cleanup destroy_marked_extents
Date: Thu, 9 May 2013 15:22:06 +0300 [thread overview]
Message-ID: <20130509122206.GA997@elgon.mountain> (raw)
Hello Josef Bacik,
This is a semi-automatic email about new static checker warnings.
The patch fd8b2b611580: "Btrfs: cleanup destroy_marked_extents" from
Apr 24, 2013, leads to the following Smatch complaint:
fs/btrfs/disk-io.c:3814 btrfs_destroy_marked_extents()
warn: variable dereferenced before check 'eb' (see line 3813)
fs/btrfs/disk-io.c
3812 root->leafsize);
3813 start += eb->len;
^^^^^^^
New dereference.
3814 if (!eb)
^^^
New check. Maybe we should be adding "root->leafsize" here? Just
the check earlier would cause a forever loop.
3815 continue;
3816 wait_on_extent_buffer_writeback(eb);
regards,
dan carpenter
next reply other threads:[~2013-05-09 12:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-09 12:22 Dan Carpenter [this message]
2013-05-09 12:32 ` Btrfs: cleanup destroy_marked_extents Josef Bacik
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